assertion  retraction  graph  subject    predicate    object                                                          datatype    annotation
1          0           graph  DOID:3011  IAO:0000115  A breast cancer that is believed to arises_from Schwann cells.  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:https://www.cancer.gov/publications/dictionaries/cancer-terms/def/granular-cell-tumor""}]}"