assertion  retraction  graph  subject   predicate    object                                         datatype    annotation
1          0           graph  DOID:866  IAO:0000115  A vascular disease that is located_in a vein.  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/Vein#Venous_diseases""}]}"