assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_33709  rdfs:label       amino acid       xsd:string  
1          0           graph  obo:CHEBI_33709  oio:id           CHEBI:33709      xsd:string  
1          0           graph  obo:CHEBI_33709  rdfs:subClassOf  obo:CHEBI_50047  _IRI        
1          0           graph  obo:CHEBI_33709  rdfs:subClassOf  obo:CHEBI_33575  _IRI        
1          0           graph  obo:CHEBI_33709  rdf:type         owl:Class        _IRI