assertion  retraction  graph  subject         predicate        object            datatype    annotation
1          0           graph  NCBITaxon:6774  rdfs:label       Portunoidea       xsd:string  
1          0           graph  NCBITaxon:6774  rdfs:subClassOf  NCBITaxon:116706  _IRI        
1          0           graph  NCBITaxon:6774  rdf:type         owl:Class         _IRI