diff --git a/docs/examples/template-drop-axiom-filter.owl b/docs/examples/template-drop-axiom-filter.owl
index 5c14a517a..b97fe2b01 100644
--- a/docs/examples/template-drop-axiom-filter.owl
+++ b/docs/examples/template-drop-axiom-filter.owl
@@ -52,6 +52,7 @@
         <obo:IAO_0000115 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Weight of a mouse or rat in kilograms (kg).</obo:IAO_0000115>
         <obo:IAO_0000117 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Rebecca C Jackson</obo:IAO_0000117>
         <rdfs:label rdf:datatype="http://www.w3.org/2001/XMLSchema#string">weight in kilograms</rdfs:label>
+        <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
     </owl:DatatypeProperty>
     
 
diff --git a/robot-core/src/main/java/org/obolibrary/robot/RelatedObjectsHelper.java b/robot-core/src/main/java/org/obolibrary/robot/RelatedObjectsHelper.java
index 106dbb472..6cc831f64 100644
--- a/robot-core/src/main/java/org/obolibrary/robot/RelatedObjectsHelper.java
+++ b/robot-core/src/main/java/org/obolibrary/robot/RelatedObjectsHelper.java
@@ -1492,6 +1492,54 @@ private static Set<IRI> getAxiomSubjects(OWLAxiom axiom) {
       for (OWLObjectPropertyExpression expr : spcAxiom.getPropertyChain()) {
         iris.addAll(getIRIsFromEntities(expr.getSignature()));
       }
+    } else if (axiom instanceof OWLObjectPropertyCharacteristicAxiom) {
+      OWLObjectPropertyCharacteristicAxiom chAxiom = (OWLObjectPropertyCharacteristicAxiom) axiom;
+      OWLObjectPropertyExpression subject = chAxiom.getProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLObjectProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
+    } else if (axiom instanceof OWLObjectPropertyDomainAxiom) {
+      OWLObjectPropertyDomainAxiom domainAxiom = (OWLObjectPropertyDomainAxiom) axiom;
+      OWLObjectPropertyExpression subject = domainAxiom.getProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLObjectProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
+    } else if (axiom instanceof OWLDataPropertyRangeAxiom) {
+      OWLDataPropertyRangeAxiom rangeAxiom = (OWLDataPropertyRangeAxiom) axiom;
+      OWLDataPropertyExpression subject = rangeAxiom.getProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLDataProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
+    } else if (axiom instanceof OWLObjectPropertyDomainAxiom) {
+      OWLObjectPropertyDomainAxiom domainAxiom = (OWLObjectPropertyDomainAxiom) axiom;
+      OWLObjectPropertyExpression subject = domainAxiom.getProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLObjectProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
+    } else if (axiom instanceof OWLDataPropertyRangeAxiom) {
+      OWLDataPropertyRangeAxiom rangeAxiom = (OWLDataPropertyRangeAxiom) axiom;
+      OWLDataPropertyExpression subject = rangeAxiom.getProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLDataProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
+    } else if (axiom instanceof OWLInverseObjectPropertiesAxiom) {
+      OWLInverseObjectPropertiesAxiom iopAxiom = (OWLInverseObjectPropertiesAxiom) axiom;
+      OWLObjectPropertyExpression subject = iopAxiom.getFirstProperty();
+      if (!subject.isAnonymous()) {
+        return Sets.newHashSet(subject.asOWLObjectProperty().getIRI());
+      } else {
+        iris.addAll(getIRIsFromEntities(subject.getSignature()));
+      }
     } else {
       logger.warn("Axiom type not supported: " + axiom.getClass().toString());
     }