#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
  subtype:  prime_of_life  the time of maturity when power and vigor are greatest
  part:  teens__teen  the time of life between the ages of 12 and 20
  part:  mid-twenties__twenties  the time of life between 20 and 30
  part:  mid-thirties__thirties__thirty-something  the time of life between 30 and 40
  part:  mid-forties__midfortie__forties__fortie  the time of life between 40 and 50
  part:  mid-fifties__midfiftie__fifties__fiftie  the time of life between 50 and 60
  part:  legal_age__legalage__majority  the age at which a person is considered competent to manage their own affairs
  part:  drinking_age  the age at which is legal for a person to buy alcoholic beverages
  part:  voting_age  the age at which a person is old enough to vote in public elections
  part:  middle_age  the time of life between youth and old age (e.g., between 40 and 60 years of age)
     part:  menopause__climacteric__changeoflife  the time in a woman's life in which the menstrual cycle ends
     part:  climacteric  a period in a man's life corresponding to menopause

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