assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_33575  rdfs:label       carboxylic acid  xsd:string  
1          0           graph  obo:CHEBI_33575  oio:id           CHEBI:33575      xsd:string  
1          0           graph  obo:CHEBI_33575  rdfs:subClassOf  obo:CHEBI_64709  _IRI        
1          0           graph  obo:CHEBI_33575  rdfs:subClassOf  obo:CHEBI_36586  _IRI        
1          0           graph  obo:CHEBI_33575  rdfs:subClassOf  obo:CHEBI_35605  _IRI        
1          0           graph  obo:CHEBI_33575  rdf:type         owl:Class        _IRI