plasma membrane region that is part of some sperm head
membrane
SubClassOf(ObjectIntersectionOf(<http://purl.obolibrary.org/obo/GO_0098590> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/GO_0061827>)) <http://purl.obolibrary.org/obo/GO_0016020>)
EquivalentClasses(<http://purl.obolibrary.org/obo/GO_1990913> ObjectIntersectionOf(<http://purl.obolibrary.org/obo/GO_0098590> ObjectSomeValuesFrom(<http://purl.obolibrary.org/obo/BFO_0000050> <http://purl.obolibrary.org/obo/GO_0061827>)) )