assertion  retraction  graph  subject          predicate        object                     datatype    annotation
1          0           graph  obo:CHEBI_33424  rdfs:label       sulfur oxoacid derivative  xsd:string  
1          0           graph  obo:CHEBI_33424  oio:id           CHEBI:33424                xsd:string  
1          0           graph  obo:CHEBI_33424  rdfs:subClassOf  obo:CHEBI_33241            _IRI        
1          0           graph  obo:CHEBI_33424  rdfs:subClassOf  obo:CHEBI_26835            _IRI        
1          0           graph  obo:CHEBI_33424  rdf:type         owl:Class                  _IRI