assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:137 IAO:0000115 A vaginal benign neoplasm that is characterized by the presence of a fibrovascular stalk lined by normal squamous epithelium. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007636""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&version=14.10d&code=C6374""}]}"