assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:2426 IAO:0000115 A central nervous system benign neoplasm that has_material_basis_in mature neurons, and is classified by the absence of neoplastic glial cells. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""},{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://link.springer.com/chapter/10.1007/978-1-4419-1062-2_18""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://radiopaedia.org/articles/gangliocytoma""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://rarediseases.info.nih.gov/diseases/10638/gangliocytoma""}]}"