diff --git a/src/cco-modules/InformationEntityOntology.ttl b/src/cco-modules/InformationEntityOntology.ttl
index 34a2527..3b5a04d 100644
--- a/src/cco-modules/InformationEntityOntology.ttl
+++ b/src/cco-modules/InformationEntityOntology.ttl
@@ -388,6 +388,7 @@ cco:ont00001980 rdf:type owl:ObjectProperty ;
 cco:ont00001982 rdf:type owl:ObjectProperty ;
                  rdfs:subPropertyOf cco:ont00001808 ;
                  rdfs:domain cco:ont00000853 ;
+                 rdfs:range obo:BFO_0000001 ;
                  rdfs:comment "It is possible that this relation should be a functional property, that is for all x, y, z if x describes y and x describes z then y = z. For example, if a financial report x describes the quarterly results of a company y and that same financial report describes the quarterly results of a company z, then it should be inferred that companies y and z are the same. We refrained from classifying the relation as a functional property on the concern that descriptions are multifaceted and so consequently it may be that the same report would contain descriptions of multiple entities."@en ;
                  rdfs:label "describes"@en ;
                  skos:definition "x describes y iff x is an instance of Descriptive Information Content Entity, and y is an instance of Entity, such that x is_about the characteristics that identify y."@en ;