assertion  retraction  graph  subject         predicate        object                datatype    annotation
1          0           graph  NCBITaxon:1309  rdfs:label       Streptococcus mutans  xsd:string  
1          0           graph  NCBITaxon:1309  rdfs:subClassOf  OBI:0100026           _IRI        
1          0           graph  NCBITaxon:1309  rdf:type         owl:Class             _IRI