assertion  retraction  graph  subject        predicate        object               datatype    annotation
1          0           graph  NCBITaxon:615  rdfs:label       Serratia marcescens  xsd:string  
1          0           graph  NCBITaxon:615  rdfs:subClassOf  OBI:0100026          _IRI        
1          0           graph  NCBITaxon:615  rdf:type         owl:Class            _IRI