diff --git a/src/patterns/data/default/entity_attribute.tsv b/src/patterns/data/default/entity_attribute.tsv
index cc06acec..63fa4bd2 100644
--- a/src/patterns/data/default/entity_attribute.tsv
+++ b/src/patterns/data/default/entity_attribute.tsv
@@ -4384,3 +4384,4 @@ OBA:2045439	body surface area	UBERON:0035159	entire surface of organism	PATO:000
 OBA:2045451	attribute of response to  allergen in serum	UBERON:0001977	blood serum	OBA:2045453	attribute of response to allergen			https://orcid.org/0000-0001-8314-2140
 OBA:2045452	attribute of response to thyroid hormone in plasma	UBERON:0001969	blood plasma	OBA:2045454	attribute of response to thyroid hormone			https://orcid.org/0000-0001-8314-2140
 OBA:2030004	total skin mass	UBERON:0002097	skin of body	PATO:0000125	mass	mass of the entire skin		https://orcid.org/0000-0003-2699-3066
+OBA:2050351	breast density	UBERON:0000310	breast	PATO:0001019	mass density	breast tissue density	PMID:37345113	https://orcid.org/0000-0001-6757-4744
diff --git a/src/patterns/definitions.owl b/src/patterns/definitions.owl
index 79b7bb3c..0ecc0a66 100644
--- a/src/patterns/definitions.owl
+++ b/src/patterns/definitions.owl
@@ -7,8 +7,8 @@ Prefix(rdfs:=<http://www.w3.org/2000/01/rdf-schema#>)
 
 
 Ontology(<http://purl.obolibrary.org/obo/oba/patterns/definitions.owl>
-<http://purl.obolibrary.org/obo/oba/releases/2023-12-05/patterns/definitions.owl>
-Annotation(owl:versionInfo "2023-12-05"^^xsd:string)
+<http://purl.obolibrary.org/obo/oba/releases/2023-12-07/patterns/definitions.owl>
+Annotation(owl:versionInfo "2023-12-07"^^xsd:string)
 
 Declaration(Class(<http://purl.obolibrary.org/obo/CHEBI_10033>))
 Declaration(Class(<http://purl.obolibrary.org/obo/CHEBI_10112>))
@@ -1494,6 +1494,7 @@ Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005147>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005148>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005178>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005180>))
+Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005184>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005271>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005277>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MONDO_0005301>))
@@ -12509,7 +12510,9 @@ Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050346>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050347>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050348>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050349>))
+Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050351>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050352>))
+Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2050353>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2060000>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2060001>))
 Declaration(Class(<http://purl.obolibrary.org/obo/OBA_2060002>))
@@ -104458,6 +104461,16 @@ AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#has
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/OBA_2050349> "level of interleukin-12 subunit beta in blood"^^xsd:string)
 EquivalentClasses(<http://purl.obolibrary.org/obo/OBA_2050349> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000070> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PR_000001369> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000178>)))))
 
+# Class: <http://purl.obolibrary.org/obo/OBA_2050351> (breast density)
+
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "AUTO:patterns/patterns/entity_attribute"^^xsd:string) <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/OBA_2050351> "The mass density of a breast."^^xsd:string)
+AnnotationAssertion(<http://purl.org/dc/terms/contributor> <http://purl.obolibrary.org/obo/OBA_2050351> "https://orcid.org/0000-0001-6757-4744"^^xsd:string)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> <http://purl.obolibrary.org/obo/OBA_2050351> "PMID:37345113"^^xsd:string)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/OBA_2050351> "breast tissue density"^^xsd:string)
+AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "AUTO:patterns/patterns/entity_attribute"^^xsd:string) <http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/OBA_2050351> "mass density of breast"^^xsd:string)
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/OBA_2050351> "breast density"^^xsd:string)
+EquivalentClasses(<http://purl.obolibrary.org/obo/OBA_2050351> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0000310>)))
+
 # Class: <http://purl.obolibrary.org/obo/OBA_2050352> (trait in response to hypoglycemic agent)
 
 AnnotationAssertion(<http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/OBA_2050352> "A trait that affects the response to a stimulus with hypoglycemic agent."^^xsd:string)
@@ -104466,6 +104479,14 @@ AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynony
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/OBA_2050352> "trait in response to hypoglycemic agent"^^xsd:string)
 EquivalentClasses(<http://purl.obolibrary.org/obo/OBA_2050352> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001236> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/GO_0050896> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0002233> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/CHEBI_24431> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000087> <http://purl.obolibrary.org/obo/CHEBI_35526>)))))))
 
+# Class: <http://purl.obolibrary.org/obo/OBA_2050353> (age of onset of pancreatic ductal adenocarcinoma)
+
+AnnotationAssertion(<http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/OBA_2050353> "The age at which pancreatic ductal adenocarcinoma manifestations first appear."^^xsd:string)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/OBA_2050353> "age at onset of pancreatic ductal adenocarcinoma"^^xsd:string)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/OBA_2050353> "age pancreatic ductal adenocarcinoma symptoms begin"^^xsd:string)
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/OBA_2050353> "age of onset of pancreatic ductal adenocarcinoma"^^xsd:string)
+EquivalentClasses(<http://purl.obolibrary.org/obo/OBA_2050353> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/HP_0003674> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/MONDO_0005184>)))
+
 # Class: <http://purl.obolibrary.org/obo/OBA_2060000> (aggressive behavior towards inanimate objects rate)
 
 AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "AUTO:patterns/patterns/entity_attribute"^^xsd:string) <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/OBA_2060000> "The rate of a aggressive behavior towards inanimate objects."^^xsd:string)
@@ -124491,6 +124512,7 @@ SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000992> Ob
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000992> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001968>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000992> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0001968>))))
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000992> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001977>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0000992> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0001977>))))
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001005> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/GO_0030431>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001005> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/GO_0030431>))))
+SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0000310>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0000310>))))
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001037>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0001037>))))
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001130>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0001130>))))
 SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/UBERON_0001435>))) ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/PATO_0001019> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/RO_0000052> <http://purl.obolibrary.org/obo/UBERON_0001435>))))