assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_24651  rdfs:label       hydroxides       xsd:string  
1          0           graph  obo:CHEBI_24651  oio:id           CHEBI:24651      xsd:string  
1          0           graph  obo:CHEBI_24651  rdfs:subClassOf  obo:CHEBI_37577  _IRI        
1          0           graph  obo:CHEBI_24651  rdfs:subClassOf  obo:CHEBI_33608  _IRI        
1          0           graph  obo:CHEBI_24651  rdfs:subClassOf  obo:CHEBI_25806  _IRI        
1          0           graph  obo:CHEBI_24651  rdf:type         owl:Class        _IRI