assertion  retraction  graph  subject    predicate    object                                                                                                                                   datatype    annotation
1          0           graph  DOID:4880  IAO:0000115  A kidney sarcoma that has_material_basis_in clear cells that are characterized as cells that look clear when viewed under a microscope.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""},{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""},{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007641""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://en.wikipedia.org/wiki/Clear-cell_sarcoma_of_the_kidney""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.cancer.gov/dictionary?CdrID=44997""}]}"