assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_45924  rdfs:label       trimethoprim     xsd:string  
1          0           graph  obo:CHEBI_45924  oio:id           CHEBI:45924      xsd:string  
1          0           graph  obo:CHEBI_45924  rdfs:subClassOf  obo:CHEBI_51683  _IRI        
1          0           graph  obo:CHEBI_45924  rdfs:subClassOf  obo:CHEBI_38338  _IRI        
1          0           graph  obo:CHEBI_45924  rdf:type         owl:Class        _IRI