assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_39410  rdfs:label       1,2,4-triazines  xsd:string  
1          0           graph  obo:CHEBI_39410  oio:id           CHEBI:39410      xsd:string  
1          0           graph  obo:CHEBI_39410  rdfs:subClassOf  obo:CHEBI_38102  _IRI        
1          0           graph  obo:CHEBI_39410  rdf:type         owl:Class        _IRI