assertion  retraction  graph  subject         predicate        object           datatype    annotation
1          0           graph  NCBITaxon:9598  rdfs:label       Pan troglodytes  xsd:string  
1          0           graph  NCBITaxon:9598  rdfs:subClassOf  OBI:0100026      _IRI        
1          0           graph  NCBITaxon:9598  rdf:type         owl:Class        _IRI