diff --git a/ontology/uco-gufo.ttl b/ontology/uco-gufo.ttl
index f6b9964..b6f8bf6 100644
--- a/ontology/uco-gufo.ttl
+++ b/ontology/uco-gufo.ttl
@@ -126,6 +126,13 @@ drafting:Velocity
 	rdfs:seeAlso <https://github.com/ucoProject/UCO/issues/567> ;
 	.
 
+drafting:isBearerOf
+	a owl:ObjectProperty ;
+	rdfs:domain gufo:ConcreteIndividual ;
+	rdfs:range gufo:Aspect ;
+	owl:inverseOf gufo:inheresIn ;
+	.
+
 uco-action:Action
 	rdfs:subClassOf drafting:Perdurant ;
 	.
@@ -148,6 +155,11 @@ uco-core:Event
 	rdfs:subClassOf drafting:Perdurant ;
 	.
 
+uco-core:Facet
+	a gufo:Category ;
+	rdfs:subClassOf gufo:IntrinsicMode ;
+	.
+
 uco-core:Item
 	rdfs:subClassOf
 		drafting:Endurant ,
@@ -162,6 +174,10 @@ uco-core:endTime
 		;
 	.
 
+uco-core:hasFacet
+	rdfs:subPropertyOf drafting:isBearerOf ;
+	.
+
 uco-core:startTime
 	rdfs:seeAlso
 		gufo:hasBeginPoint ,
@@ -202,3 +218,14 @@ uco-types:Hash
 	rdfs:subClassOf gufo:AbstractIndividual ;
 	.
 
+[]
+	a owl:Axiom ;
+	rdfs:comment
+		"This specialization stems from a Facet currently being understood to be an intrinsic mode that is not measurable.  Were it measurable, a Facet would be a Quality."@en ,
+		"This specialization will raise some disussion pertaining to core:ConfidenceFacet.  If a ConfidenceFacet is measurable, then it is a specialization of gufo:Quality, and Facet should instead be a subclass of IntrinsicAspect."@en
+		;
+	owl:annotatedObject gufo:IntrinsicMode ;
+	owl:annotatedProperty rdfs:subClassOf ;
+	owl:annotatedSubject uco-core:Facet ;
+	.
+
diff --git a/tests/exemplars.ttl b/tests/exemplars.ttl
index 75df45a..c7786a8 100644
--- a/tests/exemplars.ttl
+++ b/tests/exemplars.ttl
@@ -48,6 +48,11 @@ kb:BluetoothAddressFacet-717b8cce-e9c2-4d59-81e4-1747d7e2d8ee
 
 kb:ContentData-179c7e84-f72d-47f7-b6f3-3f4a1f0938bd
 	a uco-observable:ContentData ;
+	uco-core:hasFacet kb:ContentDataFacet-a961d865-087b-43bd-ab31-0e33331c5628 ;
+	.
+
+kb:ContentDataFacet-a961d865-087b-43bd-ab31-0e33331c5628
+	a uco-observable:ContentDataFacet ;
 	.
 
 kb:Event-03a1a1db-0579-4427-9a51-448c32281146