assertion  retraction  graph  subject          predicate        object                   datatype    annotation
1          0           graph  obo:CHEBI_35871  rdfs:label       oxo monocarboxylic acid  xsd:string  
1          0           graph  obo:CHEBI_35871  oio:id           CHEBI:35871              xsd:string  
1          0           graph  obo:CHEBI_35871  rdfs:subClassOf  obo:CHEBI_25754          _IRI        
1          0           graph  obo:CHEBI_35871  rdfs:subClassOf  obo:CHEBI_25384          _IRI        
1          0           graph  obo:CHEBI_35871  rdf:type         owl:Class                _IRI