diff --git a/src/sparnatural/generators/sparql/ClassBuilder.ts b/src/sparnatural/generators/sparql/ClassBuilder.ts
index 043c3c3e..1c05a33f 100644
--- a/src/sparnatural/generators/sparql/ClassBuilder.ts
+++ b/src/sparnatural/generators/sparql/ClassBuilder.ts
@@ -5,6 +5,8 @@ import StartClassGroup from "../../components/builder-section/groupwrapper/crite
 import { getSettings } from "../../settings/defaultSettings";
 import ISparnaturalSpecification from "../../spec-providers/ISparnaturalSpecification";
 import SparqlFactory from "./SparqlFactory";
+import { RDFS } from '../../spec-providers/BaseRDFReader';
+import { OWL } from '../../spec-providers/owl/OWLSpecificationProvider';
 
 const factory = new DataFactory();
 
@@ -64,7 +66,7 @@ export default class  ClassBuilder {
     }
 
     #buildClsTriple(){
-        // don't build the class triple if the entity does not hove type
+        // don't build the class triple if the entity does not have type
         if(this.specProvider.getEntity(this.classGroup.getTypeSelected()).hasTypeCriteria()) {
             var typePredicate;
             if(getSettings().typePredicate){
@@ -73,11 +75,19 @@ export default class  ClassBuilder {
                 typePredicate = factory.namedNode("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")
             }
 
-            this.classTriple = SparqlFactory.buildTypeTriple(
-                factory.variable(this.classGroup.getVarName()?.replace('?','')) ,
-                typePredicate,
-                factory.namedNode(this.classGroup.getTypeSelected())
-            )
+            // don't add the type if the range is rdfs:Resource or owl:Thing
+            if(
+                (this.classGroup.getTypeSelected() != RDFS.RESOURCE.value)
+                &&
+                (this.classGroup.getTypeSelected() != OWL.THING.value)
+            ) {
+                this.classTriple = SparqlFactory.buildTypeTriple(
+                    factory.variable(this.classGroup.getVarName()?.replace('?','')) ,
+                    typePredicate,
+                    factory.namedNode(this.classGroup.getTypeSelected())
+                )
+            }
+            
         }
     }
 
diff --git a/src/sparnatural/spec-providers/BaseRDFReader.ts b/src/sparnatural/spec-providers/BaseRDFReader.ts
index 6f29d4b1..99efc449 100644
--- a/src/sparnatural/spec-providers/BaseRDFReader.ts
+++ b/src/sparnatural/spec-providers/BaseRDFReader.ts
@@ -24,9 +24,8 @@ export const RDFS = {
   COMMENT: factory.namedNode(RDFS_NAMESPACE + "comment") as NamedNode,
   DOMAIN: factory.namedNode(RDFS_NAMESPACE + "domain") as NamedNode,
   RANGE: factory.namedNode(RDFS_NAMESPACE + "range") as NamedNode,
-  SUBPROPERTY_OF: factory.namedNode(
-    RDFS_NAMESPACE + "subPropertyOf"
-  ) as NamedNode,
+  RESOURCE: factory.namedNode(RDFS_NAMESPACE + "Resource") as NamedNode,
+  SUBPROPERTY_OF: factory.namedNode(RDFS_NAMESPACE + "subPropertyOf") as NamedNode,
   SUBCLASS_OF: factory.namedNode(RDFS_NAMESPACE + "subClassOf") as NamedNode,
 };
 
diff --git a/src/sparnatural/spec-providers/owl/OWLSpecificationProvider.ts b/src/sparnatural/spec-providers/owl/OWLSpecificationProvider.ts
index 3ed21190..40f247a1 100644
--- a/src/sparnatural/spec-providers/owl/OWLSpecificationProvider.ts
+++ b/src/sparnatural/spec-providers/owl/OWLSpecificationProvider.ts
@@ -20,12 +20,9 @@ const factory = new DataFactory();
 
 const OWL_NAMESPACE = "http://www.w3.org/2002/07/owl#";
 export const OWL = {
-  EQUIVALENT_PROPERTY: factory.namedNode(
-    OWL_NAMESPACE + "equivalentProperty"
-  ) as NamedNode,
-  EQUIVALENT_CLASS: factory.namedNode(
-    OWL_NAMESPACE + "equivalentClass"
-  ) as NamedNode,
+  THING: factory.namedNode(OWL_NAMESPACE + "Thing") as NamedNode,
+  EQUIVALENT_PROPERTY: factory.namedNode(OWL_NAMESPACE + "equivalentProperty") as NamedNode,
+  EQUIVALENT_CLASS: factory.namedNode(OWL_NAMESPACE + "equivalentClass") as NamedNode,
   UNION_OF: factory.namedNode(OWL_NAMESPACE + "unionOf") as NamedNode
 };
 
diff --git a/src/sparnatural/spec-providers/shacl/SHACLSpecificationProperty.ts b/src/sparnatural/spec-providers/shacl/SHACLSpecificationProperty.ts
index e15b4ab6..cb96ced8 100644
--- a/src/sparnatural/spec-providers/shacl/SHACLSpecificationProperty.ts
+++ b/src/sparnatural/spec-providers/shacl/SHACLSpecificationProperty.ts
@@ -11,7 +11,6 @@ import ISHACLSpecificationEntity from "./ISHACLSpecificationEntity";
 import { RdfStore } from "rdf-stores";
 import { Quad, Quad_Subject, Term } from "@rdfjs/types/data-model";
 import { StoreModel } from "../StoreModel";
-import { OWL } from "../owl/OWLSpecificationProvider";
 import { StatisticsReader } from "../StatisticsReader";
 
 const factory = new DataFactory();