assertion  retraction  graph  subject          predicate        object             datatype    annotation
1          0           graph  obo:CHEBI_36357  rdfs:label       polyatomic entity  xsd:string  
1          0           graph  obo:CHEBI_36357  oio:id           CHEBI:36357        xsd:string  
1          0           graph  obo:CHEBI_36357  rdfs:subClassOf  obo:CHEBI_23367    _IRI        
1          0           graph  obo:CHEBI_36357  rdf:type         owl:Class          _IRI