3 · Human Being, Man in General
31 · man in a general biological sense
31D · human life and its ages (young, adult, old, etc.)
31D1 · the ages of man
31D12 · youth, young man, adolescent
31D12(+7) · youth, young man, adolescent (+ number of persons)
31D12(+73) ·
youth, young man, adolescent (+ three persons)