assertion  retraction  graph  subject          predicate        object                              datatype    annotation
1          0           graph  obo:CHEBI_35507  rdfs:label       natural product fundamental parent  xsd:string  
1          0           graph  obo:CHEBI_35507  oio:id           CHEBI:35507                         xsd:string  
1          0           graph  obo:CHEBI_35507  rdfs:subClassOf  obo:CHEBI_33245                     _IRI        
1          0           graph  obo:CHEBI_35507  rdf:type         owl:Class                           _IRI