assertion  retraction  graph  subject      predicate        object       datatype    annotation
1          0           graph  NCBITaxon:1  rdfs:label       ncbitaxon    xsd:string  
1          0           graph  NCBITaxon:1  oio:id           NCBITaxon:1  xsd:string  
1          0           graph  NCBITaxon:1  rdfs:subClassOf  owl:Thing    _IRI        
1          0           graph  NCBITaxon:1  rdf:type         owl:Class    _IRI