assertion  retraction  graph  subject        predicate        object                                                  datatype    annotation
1          0           graph  NCBITaxon:611  rdfs:label       Salmonella enterica subsp. enterica serovar Heidelberg  xsd:string  
1          0           graph  NCBITaxon:611  rdfs:subClassOf  OBI:0100026                                             _IRI        
1          0           graph  NCBITaxon:611  rdf:type         owl:Class                                               _IRI