assertion  retraction  graph  subject       predicate    object                                                                                         datatype    annotation
1          0           graph  DOID:0050903  IAO:0000115  A parietal lobe neoplasm that has_material_basis_in cells lining the ventricles of the brain.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""},{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007641""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.cancer.gov/dictionary?CdrID=46432""}]}"