assertion  retraction  graph  subject               predicate        object       datatype    annotation
1          0           graph  NCBITaxon:subspecies  rdfs:label       subspecies   xsd:string  
1          0           graph  NCBITaxon:subspecies  rdfs:subClassOf  IAO:0000030  _IRI        
1          0           graph  NCBITaxon:subspecies  rdf:type         owl:Class    _IRI