assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  NCBITaxon:15957  rdfs:label       Phleum pratense  xsd:string  
1          0           graph  NCBITaxon:15957  rdfs:subClassOf  OBI:0100026      _IRI        
1          0           graph  NCBITaxon:15957  rdf:type         owl:Class        _IRI