assertion  retraction  graph  subject    predicate    object                                              datatype    annotation
1          0           graph  DOID:4838  IAO:0000115  A carcinoma that derives_from myoepithelial cells.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.diagnosticpathology.org/content/3/1/7""}]}"