assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_33958  rdfs:label       halide salt      xsd:string  
1          0           graph  obo:CHEBI_33958  oio:id           CHEBI:33958      xsd:string  
1          0           graph  obo:CHEBI_33958  rdfs:subClassOf  obo:CHEBI_37578  _IRI        
1          0           graph  obo:CHEBI_33958  rdfs:subClassOf  obo:CHEBI_24866  _IRI        
1          0           graph  obo:CHEBI_33958  rdf:type         owl:Class        _IRI