assertion  retraction  graph  subject               predicate    object                  datatype    annotation
1          0           graph  oio:hasNarrowSynonym  rdfs:label   has_narrow_synonym      xsd:string  
1          0           graph  oio:hasNarrowSynonym  rdf:type     owl:AnnotationProperty  _IRI        
1          0           graph  oio:hasNarrowSynonym  IAO:0000115  Narrow synonym.         xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.geneontology.org/formats/oboInOwl#hasNarrowSynonym""}]}"