assertion  retraction  graph  subject  predicate    object                                   datatype    annotation
1          0           graph  oio:id   IAO:0000115  An identifier for an individual entity.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://purl.obolibrary.org/obo/IAO_0020000""}]}"