assertion  retraction  graph  subject         predicate        object               datatype    annotation
1          0           graph  NCBITaxon:6973  rdfs:label       Blattella germanica  xsd:string  
1          0           graph  NCBITaxon:6973  rdfs:subClassOf  OBI:0100026          _IRI        
1          0           graph  NCBITaxon:6973  rdf:type         owl:Class            _IRI