diff --git a/test-cases/RMLTTC0001a/README.md b/test-cases/RMLTTC0001a/README.md
index 34fa66d..cd0a00a 100644
--- a/test-cases/RMLTTC0001a/README.md
+++ b/test-cases/RMLTTC0001a/README.md
@@ -93,15 +93,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0001a/dump1.nq b/test-cases/RMLTTC0001a/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0001a/dump1.nq
+++ b/test-cases/RMLTTC0001a/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0001d/README.md b/test-cases/RMLTTC0001d/README.md
index 8657705..80e7f5d 100644
--- a/test-cases/RMLTTC0001d/README.md
+++ b/test-cases/RMLTTC0001d/README.md
@@ -98,15 +98,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph>.
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph>.
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph> .
 
 ```
diff --git a/test-cases/RMLTTC0001d/dump1.nq b/test-cases/RMLTTC0001d/dump1.nq
index adcefd0..b7c1fa0 100644
--- a/test-cases/RMLTTC0001d/dump1.nq
+++ b/test-cases/RMLTTC0001d/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph>.
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph>.
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph> .
diff --git a/test-cases/RMLTTC0002a/README.md b/test-cases/RMLTTC0002a/README.md
index 299577a..e2f54b3 100644
--- a/test-cases/RMLTTC0002a/README.md
+++ b/test-cases/RMLTTC0002a/README.md
@@ -102,30 +102,30 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0002a/dump1.nq b/test-cases/RMLTTC0002a/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0002a/dump1.nq
+++ b/test-cases/RMLTTC0002a/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0002a/dump2.nq b/test-cases/RMLTTC0002a/dump2.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0002a/dump2.nq
+++ b/test-cases/RMLTTC0002a/dump2.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0002b/README.md b/test-cases/RMLTTC0002b/README.md
index f24589b..68f5808 100644
--- a/test-cases/RMLTTC0002b/README.md
+++ b/test-cases/RMLTTC0002b/README.md
@@ -102,26 +102,26 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002b/dump1.nq b/test-cases/RMLTTC0002b/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0002b/dump1.nq
+++ b/test-cases/RMLTTC0002b/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0002b/dump2.nq b/test-cases/RMLTTC0002b/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002b/dump2.nq
+++ b/test-cases/RMLTTC0002b/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002c/README.md b/test-cases/RMLTTC0002c/README.md
index e1c45b0..f300058 100644
--- a/test-cases/RMLTTC0002c/README.md
+++ b/test-cases/RMLTTC0002c/README.md
@@ -102,26 +102,26 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002c/dump1.nq b/test-cases/RMLTTC0002c/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0002c/dump1.nq
+++ b/test-cases/RMLTTC0002c/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0002c/dump2.nq b/test-cases/RMLTTC0002c/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002c/dump2.nq
+++ b/test-cases/RMLTTC0002c/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002d/README.md b/test-cases/RMLTTC0002d/README.md
index 76f1adf..a29ef11 100644
--- a/test-cases/RMLTTC0002d/README.md
+++ b/test-cases/RMLTTC0002d/README.md
@@ -112,11 +112,11 @@
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002d/dump2.nq b/test-cases/RMLTTC0002d/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002d/dump2.nq
+++ b/test-cases/RMLTTC0002d/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002e/README.md b/test-cases/RMLTTC0002e/README.md
index 7334649..b9e50e7 100644
--- a/test-cases/RMLTTC0002e/README.md
+++ b/test-cases/RMLTTC0002e/README.md
@@ -121,11 +121,11 @@
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002e/dump2.nq b/test-cases/RMLTTC0002e/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002e/dump2.nq
+++ b/test-cases/RMLTTC0002e/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002e/dump3.nq b/test-cases/RMLTTC0002e/dump3.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0002e/dump3.nq
+++ b/test-cases/RMLTTC0002e/dump3.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0002f/README.md b/test-cases/RMLTTC0002f/README.md
index 3e48018..c0437e5 100644
--- a/test-cases/RMLTTC0002f/README.md
+++ b/test-cases/RMLTTC0002f/README.md
@@ -106,15 +106,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph> .
 
 ```
diff --git a/test-cases/RMLTTC0002f/dump1.nq b/test-cases/RMLTTC0002f/dump1.nq
index 0cbc7f5..3cf2407 100644
--- a/test-cases/RMLTTC0002f/dump1.nq
+++ b/test-cases/RMLTTC0002f/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph> .
diff --git a/test-cases/RMLTTC0002g/README.md b/test-cases/RMLTTC0002g/README.md
index 957cf96..8fdab94 100644
--- a/test-cases/RMLTTC0002g/README.md
+++ b/test-cases/RMLTTC0002g/README.md
@@ -106,11 +106,11 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002g/dump1.nq b/test-cases/RMLTTC0002g/dump1.nq
index 42e9dfe..c3eeab3 100644
--- a/test-cases/RMLTTC0002g/dump1.nq
+++ b/test-cases/RMLTTC0002g/dump1.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002h/README.md b/test-cases/RMLTTC0002h/README.md
index 878af28..b8a66fa 100644
--- a/test-cases/RMLTTC0002h/README.md
+++ b/test-cases/RMLTTC0002h/README.md
@@ -106,11 +106,11 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002h/dump1.nq b/test-cases/RMLTTC0002h/dump1.nq
index 42e9dfe..c3eeab3 100644
--- a/test-cases/RMLTTC0002h/dump1.nq
+++ b/test-cases/RMLTTC0002h/dump1.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002i/README.md b/test-cases/RMLTTC0002i/README.md
index 371a4cc..e05c0c2 100644
--- a/test-cases/RMLTTC0002i/README.md
+++ b/test-cases/RMLTTC0002i/README.md
@@ -109,11 +109,11 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph> .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002i/dump1.nq b/test-cases/RMLTTC0002i/dump1.nq
index fb4f3a4..b92731f 100644
--- a/test-cases/RMLTTC0002i/dump1.nq
+++ b/test-cases/RMLTTC0002i/dump1.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph> .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph> .
diff --git a/test-cases/RMLTTC0002j/README.md b/test-cases/RMLTTC0002j/README.md
index 0838260..4d41892 100644
--- a/test-cases/RMLTTC0002j/README.md
+++ b/test-cases/RMLTTC0002j/README.md
@@ -106,11 +106,11 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002j/dump1.nq b/test-cases/RMLTTC0002j/dump1.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002j/dump1.nq
+++ b/test-cases/RMLTTC0002j/dump1.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002m/README.md b/test-cases/RMLTTC0002m/README.md
index 6727d98..bd09403 100644
--- a/test-cases/RMLTTC0002m/README.md
+++ b/test-cases/RMLTTC0002m/README.md
@@ -112,11 +112,11 @@
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002m/dump2.nq b/test-cases/RMLTTC0002m/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002m/dump2.nq
+++ b/test-cases/RMLTTC0002m/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002n/README.md b/test-cases/RMLTTC0002n/README.md
index e0a1076..e1611dc 100644
--- a/test-cases/RMLTTC0002n/README.md
+++ b/test-cases/RMLTTC0002n/README.md
@@ -112,11 +112,11 @@
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002n/dump2.nq b/test-cases/RMLTTC0002n/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0002n/dump2.nq
+++ b/test-cases/RMLTTC0002n/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0002o/README.md b/test-cases/RMLTTC0002o/README.md
index 67d69c4..40e8eb1 100644
--- a/test-cases/RMLTTC0002o/README.md
+++ b/test-cases/RMLTTC0002o/README.md
@@ -109,15 +109,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph1>.
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1>.
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph1> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph1> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph1> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph1> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph1> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph1> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph1> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph1> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph1> .
 
 ```
diff --git a/test-cases/RMLTTC0002o/dump1.nq b/test-cases/RMLTTC0002o/dump1.nq
index b5a5e2b..beb897f 100644
--- a/test-cases/RMLTTC0002o/dump1.nq
+++ b/test-cases/RMLTTC0002o/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" <http://example.org/PeopleGraph1>.
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1>.
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" <http://example.org/PeopleGraph1> .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" <http://example.org/PeopleGraph1> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" <http://example.org/PeopleGraph1> .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" <http://example.org/PeopleGraph1> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" <http://example.org/PeopleGraph1> .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" <http://example.org/PeopleGraph1> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" <http://example.org/PeopleGraph1> .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" <http://example.org/PeopleGraph1> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> <http://example.org/PeopleGraph1> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" <http://example.org/PeopleGraph1> .
diff --git a/test-cases/RMLTTC0002r/README.md b/test-cases/RMLTTC0002r/README.md
index 06d17ff..ec2ac43 100644
--- a/test-cases/RMLTTC0002r/README.md
+++ b/test-cases/RMLTTC0002r/README.md
@@ -99,11 +99,11 @@
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0002r/dump1.nq b/test-cases/RMLTTC0002r/dump1.nq
index 3624750..fc7c0ac 100644
--- a/test-cases/RMLTTC0002r/dump1.nq
+++ b/test-cases/RMLTTC0002r/dump1.nq
@@ -3,8 +3,8 @@
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0003a/README.md b/test-cases/RMLTTC0003a/README.md
index 6144767..810aa69 100644
--- a/test-cases/RMLTTC0003a/README.md
+++ b/test-cases/RMLTTC0003a/README.md
@@ -126,11 +126,11 @@
 
 **Output 3**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 
 ```
 
diff --git a/test-cases/RMLTTC0003a/dump2.nq b/test-cases/RMLTTC0003a/dump2.nq
index 35a3950..81c3a87 100644
--- a/test-cases/RMLTTC0003a/dump2.nq
+++ b/test-cases/RMLTTC0003a/dump2.nq
@@ -1,5 +1,5 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
diff --git a/test-cases/RMLTTC0004d/README.md b/test-cases/RMLTTC0004d/README.md
index 68b41db..2ca7ede 100644
--- a/test-cases/RMLTTC0004d/README.md
+++ b/test-cases/RMLTTC0004d/README.md
@@ -93,15 +93,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0004d/dump1.nq b/test-cases/RMLTTC0004d/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0004d/dump1.nq
+++ b/test-cases/RMLTTC0004d/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0005a/README.md b/test-cases/RMLTTC0005a/README.md
index 3e87f9b..448005b 100644
--- a/test-cases/RMLTTC0005a/README.md
+++ b/test-cases/RMLTTC0005a/README.md
@@ -94,15 +94,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0005a/dump1.nq b/test-cases/RMLTTC0005a/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0005a/dump1.nq
+++ b/test-cases/RMLTTC0005a/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0006a/README.md b/test-cases/RMLTTC0006a/README.md
index 96554c9..65ec267 100644
--- a/test-cases/RMLTTC0006a/README.md
+++ b/test-cases/RMLTTC0006a/README.md
@@ -93,15 +93,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0006a/dump1.nq b/test-cases/RMLTTC0006a/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0006a/dump1.nq
+++ b/test-cases/RMLTTC0006a/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
diff --git a/test-cases/RMLTTC0007a/README.md b/test-cases/RMLTTC0007a/README.md
index 4e2f433..83aafee 100644
--- a/test-cases/RMLTTC0007a/README.md
+++ b/test-cases/RMLTTC0007a/README.md
@@ -93,15 +93,15 @@
 
 **Output 2**
 ```
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .
 
 ```
diff --git a/test-cases/RMLTTC0007a/dump1.nq b/test-cases/RMLTTC0007a/dump1.nq
index d945676..63f28ff 100644
--- a/test-cases/RMLTTC0007a/dump1.nq
+++ b/test-cases/RMLTTC0007a/dump1.nq
@@ -1,10 +1,10 @@
-<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33" .
+<http://example.org/0> <http://xmlns.com/foaf/0.1/age> "33"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/0> <http://xmlns.com/foaf/0.1/name> "Monica Geller" .
-<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34" .
+<http://example.org/1> <http://xmlns.com/foaf/0.1/age> "34"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/1> <http://xmlns.com/foaf/0.1/name> "Rachel Green" .
-<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35" .
+<http://example.org/2> <http://xmlns.com/foaf/0.1/age> "35"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/2> <http://xmlns.com/foaf/0.1/name> "Joey Tribbiani" .
-<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36" .
+<http://example.org/3> <http://xmlns.com/foaf/0.1/age> "36"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/3> <http://xmlns.com/foaf/0.1/name> "Chandler Bing" .
-<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37" .
+<http://example.org/4> <http://xmlns.com/foaf/0.1/age> "37"^^<http://www.w3.org/2001/XMLSchema#integer> .
 <http://example.org/4> <http://xmlns.com/foaf/0.1/name> "Ross Geller" .