assertion  retraction  graph  subject   predicate    object                                                                                                                datatype    annotation
1          0           graph  DOID:264  IAO:0000115  A hemangiopericytic tumor that is a soft tissue sarcoma and originates in the pericytes in the walls of capillaries.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://en.wikipedia.org/wiki/Hemangiopericytoma""}]}"