assertion  retraction  graph  subject        predicate        object                 datatype    annotation
1          0           graph  NCBITaxon:813  rdfs:label       Chlamydia trachomatis  xsd:string  
1          0           graph  NCBITaxon:813  rdfs:subClassOf  OBI:0100026            _IRI        
1          0           graph  NCBITaxon:813  rdf:type         owl:Class              _IRI