assertion retraction graph subject predicate object datatype annotation 1 0 graph obo:CHEBI_35362 rdfs:label hydrazide xsd:string 1 0 graph obo:CHEBI_35362 oio:id CHEBI:35362 xsd:string 1 0 graph obo:CHEBI_35362 rdfs:subClassOf obo:CHEBI_51143 _IRI 1 0 graph obo:CHEBI_35362 rdf:type owl:Class _IRI