diff --git a/ontology/uco-bfo.ttl b/ontology/uco-bfo.ttl
index a88d475..f8d8b91 100644
--- a/ontology/uco-bfo.ttl
+++ b/ontology/uco-bfo.ttl
@@ -59,6 +59,30 @@ uco-action:Action
 		;
 	.
 
+uco-action:instrument
+	rdfs:subPropertyOf obo:BFO_0000057 ;
+	.
+
+uco-action:object
+	rdfs:subPropertyOf obo:BFO_0000057 ;
+	.
+
+uco-action:participant
+	rdfs:subPropertyOf obo:BFO_0000057 ;
+	.
+
+uco-action:performer
+	rdfs:subPropertyOf obo:BFO_0000057 ;
+	.
+
+uco-action:result
+	rdfs:subPropertyOf obo:BFO_0000057 ;
+	.
+
+uco-action:subaction
+	rdfs:subPropertyOf obo:BFO_0000117 ;
+	.
+
 uco-core:Event
 	rdfs:subClassOf
 		drafting:Perdurant ,
diff --git a/tests/exemplars.ttl b/tests/exemplars.ttl
index a14227b..41cb4a1 100644
--- a/tests/exemplars.ttl
+++ b/tests/exemplars.ttl
@@ -21,14 +21,49 @@
 	owl:imports <http://example.org/ontology/uco-bfo> ;
 	.
 
+kb:Action-3631e758-b074-495e-b50d-11080f10db19
+	a uco-action:Action ;
+	uco-action:instrument kb:Device-2ec8a869-d6ba-431e-811d-c47aa493c553 ;
+	.
+
 kb:Action-561624b7-1ca5-4571-9ef8-3b9bf65f82b4
 	a uco-action:Action ;
 	.
 
+kb:Action-6df3fd13-3c77-46a8-84bc-c819a51e07f5
+	a uco-observable:Action ;
+	uco-action:participant kb:Person-adebbee8-57f2-4a9c-b648-98f34a302316 ;
+	uco-action:performer kb:Person-c457e114-10a6-46d3-863f-dd69c30e41c6 ;
+	.
+
+kb:Action-b948a17d-02cf-4b52-af5c-745ee55ad696
+	a uco-action:Action ;
+	uco-action:object kb:Device-411f82ab-65db-461d-b913-f00df2394c9a ;
+	uco-action:result kb:File-f2c3497e-da39-4bbf-918a-511f13c22dc4 ;
+	uco-core:description "A disk is imaged." ;
+	.
+
+kb:Action-dba896de-eedd-45e1-870d-f933dff3bb78
+	a uco-observable:Action ;
+	uco-action:subaction kb:Action-fed2acb1-814d-4499-96b5-4151a58a6967 ;
+	.
+
+kb:Action-fed2acb1-814d-4499-96b5-4151a58a6967
+	a uco-action:Action ;
+	.
+
 kb:ContentData-179c7e84-f72d-47f7-b6f3-3f4a1f0938bd
 	a uco-observable:ContentData ;
 	.
 
+kb:Device-2ec8a869-d6ba-431e-811d-c47aa493c553
+	a uco-observable:Device ;
+	.
+
+kb:Device-411f82ab-65db-461d-b913-f00df2394c9a
+	a uco-observable:Device ;
+	.
+
 kb:Device-af503a3b-397c-4690-bef9-3972e0f2889d
 	a uco-observable:Device ;
 	.
@@ -41,6 +76,13 @@ kb:File-e364d7d2-25c8-4d4a-95d1-b03f73934e83
 	a uco-observable:File ;
 	.
 
+kb:File-f2c3497e-da39-4bbf-918a-511f13c22dc4
+	a
+		uco-observable:File ,
+		uco-observable:Image
+		;
+	.
+
 kb:Identity-7658570e-f6e1-4fbf-ad6b-d057a38cc7eb
 	a uco-identity:Identity ;
 	.
@@ -57,10 +99,18 @@ kb:ObservablePattern-43623d97-2877-46c6-a52c-7e636f767ceb
 	a uco-observable:ObservablePattern ;
 	.
 
+kb:Person-adebbee8-57f2-4a9c-b648-98f34a302316
+	a uco-identity:Person ;
+	.
+
 kb:Person-aec83773-81b1-4db2-aa8f-59cf745bf558
 	a uco-identity:Person ;
 	.
 
+kb:Person-c457e114-10a6-46d3-863f-dd69c30e41c6
+	a uco-identity:Person ;
+	.
+
 kb:Quality-4b765c1f-362c-4562-a50f-7bb781fe4737
 	a drafting:Quality ;
 	obo:BFO_0000197 kb:ContentData-179c7e84-f72d-47f7-b6f3-3f4a1f0938bd ;