assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:7429 IAO:0000115 A brain germinoma that is characterized by tumor of the germ cell in childhood that has_material_basis_in abnormally proliferating cells derives_from germ cells, located_in pineal area and located_in suprasellar area. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Germinoma""}]}"