assertion  retraction  graph  subject        predicate        object         datatype    annotation
1          0           graph  NCBITaxon:236  rdfs:label       Brucella ovis  xsd:string  
1          0           graph  NCBITaxon:236  rdfs:subClassOf  OBI:0100026    _IRI        
1          0           graph  NCBITaxon:236  rdf:type         owl:Class      _IRI