1 1 0 http://purl.obolibrary.org/obo/CHEBI_27732 caffeine 'caffeine' SubClassOf 'has role' some http://purl.obolibrary.org/obo/CHEBI_176497 http://purl.obolibrary.org/obo/CHEBI_176497 geroprotector 'geroprotector' SubClassOf 'protective agent'