assertion  retraction  graph  subject         predicate        object            datatype    annotation
1          0           graph  NCBITaxon:6657  rdfs:label       Crustacea         xsd:string  
1          0           graph  NCBITaxon:6657  rdfs:subClassOf  NCBITaxon:197562  _IRI        
1          0           graph  NCBITaxon:6657  rdf:type         owl:Class         _IRI