#sedative_drug__sedative__depressant__downer  a drug that reduces excitability and calms a person
  subtype:  bromide.sedative_drug  chloral_hydrate  glutethimide  sedative-hypnotic_drug
  supertype:  medicament__medicine__medication__medicinal_drug__medicinaldrug  something that treats or prevents or alleviates the symptoms of disease
     supertype:  drug  a substance that is used as a medicine or narcotic
        supertype:  agent.causal_agent  a substance that exerts some force or effect
           supertype:  causal_agent__cause__causal_agency  any entity that causes events to happen
              supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                 supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
  supertype:  drug_of_abuse__street_drug  a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction
     supertype:  drug  a substance that is used as a medicine or narcotic

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