assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_24129  rdfs:label       furans           xsd:string  
1          0           graph  obo:CHEBI_24129  oio:id           CHEBI:24129      xsd:string  
1          0           graph  obo:CHEBI_24129  rdfs:subClassOf  obo:CHEBI_38104  _IRI        
1          0           graph  obo:CHEBI_24129  rdfs:subClassOf  obo:CHEBI_25693  _IRI        
1          0           graph  obo:CHEBI_24129  rdf:type         owl:Class        _IRI