assertion  retraction  graph  subject         predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_3770  rdfs:label       co-trimoxazole   xsd:string  
1          0           graph  obo:CHEBI_3770  oio:id           CHEBI:3770       xsd:string  
1          0           graph  obo:CHEBI_3770  rdfs:subClassOf  obo:CHEBI_60004  _IRI        
1          0           graph  obo:CHEBI_3770  rdf:type         owl:Class        _IRI