#maturity__adulthood  the period of time in your life after your physical growth has stopped and you are fully developed
  supertype:  time_of_life  a period of time during which a person is normally in a particular life state
  part:  teens  mid-twenties  mid-thirties  mid-forties  mid-fifties  legal_age  drinking_age  voting_age  middle_age
  subtype:  prime_of_life__prime  the time of maturity when power and vigor are greatest

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