assertion  retraction  graph  subject          predicate  object              datatype  annotation
1          0           graph  obo:IDO_0000664  rdf:type   owl:ObjectProperty  _IRI      
1          0           graph  obo:RO_0002162   rdf:type   owl:ObjectProperty  _IRI      
1          0           graph  ONTIE:0003420    rdf:type   owl:ObjectProperty  _IRI