assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:6331 IAO:0000115 A malignant ovarian germ cell neoplasm that is a teratoma containing variable amounts of immature (typically primitive/embryonal neuroectodermal) tissues, including, in its most primitive forms, embryoid bodies. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pubmed/26142911""}]}"