assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_17478  rdfs:label       aldehyde         xsd:string  
1          0           graph  obo:CHEBI_17478  oio:id           CHEBI:17478      xsd:string  
1          0           graph  obo:CHEBI_17478  rdfs:subClassOf  obo:CHEBI_36586  _IRI        
1          0           graph  obo:CHEBI_17478  rdf:type         owl:Class        _IRI