How caffeine is classified (ancestors)

Ancestor	Label
CHEBI_22315	alkaloid
CHEBI_23367	molecular entity
CHEBI_24431	chemical entity
CHEBI_24532	organic heterocyclic…

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The query

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX obo: <http://purl.obolibrary.org/obo/> SELECT ?ancestor ?label WHERE { obo:CHEBI_27732 rdfs:subClassOf+ ?ancestor . ?ancestor rdfs:label ?label } LIMIT 100

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