assertion  retraction  graph  subject         predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_3508  rdfs:label       ceftazidime      xsd:string  
1          0           graph  obo:CHEBI_3508  oio:id           CHEBI:3508       xsd:string  
1          0           graph  obo:CHEBI_3508  rdfs:subClassOf  obo:CHEBI_36816  _IRI        
1          0           graph  obo:CHEBI_3508  rdfs:subClassOf  obo:CHEBI_23066  _IRI        
1          0           graph  obo:CHEBI_3508  rdf:type         owl:Class        _IRI