assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_35850  rdfs:label       sulfone          xsd:string  
1          0           graph  obo:CHEBI_35850  oio:id           CHEBI:35850      xsd:string  
1          0           graph  obo:CHEBI_35850  rdfs:subClassOf  obo:CHEBI_33261  _IRI        
1          0           graph  obo:CHEBI_35850  rdf:type         owl:Class        _IRI