assertion  retraction  graph  subject          predicate        object                    datatype    annotation
1          0           graph  obo:CHEBI_72588  rdfs:label       semisynthetic derivative  xsd:string  
1          0           graph  obo:CHEBI_72588  oio:id           CHEBI:72588               xsd:string  
1          0           graph  obo:CHEBI_72588  rdfs:subClassOf  obo:CHEBI_50860           _IRI        
1          0           graph  obo:CHEBI_72588  rdf:type         owl:Class                 _IRI