diff --git a/data/carSimulationOntology.owl b/data/carSimulationOntology.owl
index 169db57..593d997 100644
--- a/data/carSimulationOntology.owl
+++ b/data/carSimulationOntology.owl
@@ -54,6 +54,24 @@
     
 
 
+    <!-- http://myexample.org/hasDriverLicense -->
+
+    <owl:DatatypeProperty rdf:about="http://myexample.org/hasDriverLicense">
+        <rdfs:domain rdf:resource="http://myexample.org/#Driver"/>
+        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
+    </owl:DatatypeProperty>
+    
+
+
+    <!-- http://myexample.org/requiresDriverLicense -->
+
+    <owl:DatatypeProperty rdf:about="http://myexample.org/requiresDriverLicense">
+        <rdfs:domain rdf:resource="http://myexample.org/#Car"/>
+        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
+    </owl:DatatypeProperty>
+    
+
+
     <!-- http://myexample.org/#maximumMotorRPM -->
 
     <owl:DatatypeProperty rdf:about="http://myexample.org/#maximumMotorRPM">
@@ -67,7 +85,7 @@
 
     <owl:DatatypeProperty rdf:about="http://myexample.org/#maximumTirePressure">
         <rdfs:domain rdf:resource="http://myexample.org/#Car"/>
-        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
+        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#double"/>
     </owl:DatatypeProperty>
     
 
@@ -85,7 +103,7 @@
 
     <owl:DatatypeProperty rdf:about="http://myexample.org/#minimumTirePressure">
         <rdfs:domain rdf:resource="http://myexample.org/#Car"/>
-        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#float"/>
+        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#double"/>
     </owl:DatatypeProperty>
     
 
@@ -128,6 +146,7 @@
 
     <owl:NamedIndividual rdf:about="http://myexample.org/#Max">
         <rdf:type rdf:resource="http://myexample.org/#Driver"/>
+        <hasDriverLicense rdf:datatype="http://www.w3.org/2001/XMLSchema#string">B</hasDriverLicense>
     </owl:NamedIndividual>
     
 
@@ -137,6 +156,7 @@
     <owl:NamedIndividual rdf:about="http://myexample.org/#Volvo">
         <rdf:type rdf:resource="http://myexample.org/#Car"/>
         <myexample:isDrivenBy rdf:resource="http://myexample.org/#Max"/>
+        <requiresDriverLicense rdf:datatype="http://www.w3.org/2001/XMLSchema#string">B</requiresDriverLicense>
         <myexample:maximumMotorRPM rdf:datatype="http://www.w3.org/2001/XMLSchema#positiveInteger">4500</myexample:maximumMotorRPM>
         <myexample:maximumTirePressure rdf:datatype="http://www.w3.org/2001/XMLSchema#double">3.5</myexample:maximumTirePressure>
         <myexample:minimumMotorRPM rdf:datatype="http://www.w3.org/2001/XMLSchema#positiveInteger">800</myexample:minimumMotorRPM>