assertion  retraction  graph  subject          predicate        object               datatype    annotation
1          0           graph  obo:CHEBI_25384  rdfs:label       monocarboxylic acid  xsd:string  
1          0           graph  obo:CHEBI_25384  oio:id           CHEBI:25384          xsd:string  
1          0           graph  obo:CHEBI_25384  rdfs:subClassOf  obo:CHEBI_33575      _IRI        
1          0           graph  obo:CHEBI_25384  rdf:type         owl:Class            _IRI