assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:10201 IAO:0000115 A gallbladder benign neoplasm that is located_in the gallbladder and derives_from fat cells. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://link.springer.com/referenceworkentry/10.1007%2F978-3-319-26587-2_156-1""}]}"