#barbiturate  organic compound having powerful soporific effect; overdose can be fatal
  subtype:  amobarbital  barbital  mephobarbital  pentobarbital_sodium  secobarbital_sodium  sodium_thiopental  thiopental_sodium
  supertype:  sedative-hypnotic_drug__sedative-hypnotic  a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep
     supertype:  sedative_drug__sedative__depressant__downer  a drug that reduces excitability and calms a person
        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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