assertion  retraction  graph  subject           predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_102166  rdfs:label       thiopental       xsd:string  
1          0           graph  obo:CHEBI_102166  oio:id           CHEBI:102166     xsd:string  
1          0           graph  obo:CHEBI_102166  rdfs:subClassOf  obo:CHEBI_22693  _IRI        
1          0           graph  obo:CHEBI_102166  rdf:type         owl:Class        _IRI