#vital_principle__vitalprinciple__life_principle  a hypothetical force to which the functions and qualities peculiar to living things are sometimes ascribed
  supertype:  #causal_agent__cause__causal_agency  any entity that causes events to happen
  subtype:  #spirit.vital_principle  the vital principle or animating force within living things
     subtype:  #psyche__soul  the immaterial part of a person; the actuating cause of an individual life
        subtype:  #ghost  the visible disembodied soul of a dead person
           subtype:  #poltergeist  a ghost that announces its presence with rapping and the creation of disorder

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