diff --git a/src/cco-extensions/ModalRelationOntology.ttl b/src/cco-extensions/ModalRelationOntology.ttl
index 05270d3..960dc76 100644
--- a/src/cco-extensions/ModalRelationOntology.ttl
+++ b/src/cco-extensions/ModalRelationOntology.ttl
@@ -2148,9 +2148,10 @@ mro:ont00001916 rdf:type owl:ObjectProperty ;
 mro:ont00001917 rdf:type owl:ObjectProperty ;
                 rdfs:subPropertyOf mro:ont00001801 ;
                 owl:inverseOf mro:ont00001982 ;
+                rdfs:domain obo:BFO_0000001 ;
                 rdfs:range cco:ont00000853 ;
                 rdfs:label "described by"@en ;
-                <http://www.w3.org/2004/02/skos/core#definition> "x described_by y iff y is an instance of Information Content Entity, and x is an instance of Entity, such that y is about the characteristics by which y can be recognized or visualized."@en ;
+                <http://www.w3.org/2004/02/skos/core#definition> "x described_by y iff y is an instance of Descriptive Information Content Entity and x is an instance of Entity and y describes x."@en ;
                 cco:ont00001760 <https://www.commoncoreontologies.org/ModalRelationOntology> .