assertion  retraction  graph  subject    predicate            object                                                 datatype    annotation
1          0           graph  DOID:5559  oio:hasExactSynonym  mediastinal tumor                                      @en         
1          0           graph  DOID:5559  IAO:0000115          A thoracic cancer that is located_in the mediastinum.  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/Mediastinal""}]}"