Ключевые слова: adult, age, aged, aging, alone, background, casual, caucasian, cheerful, citizen, elder, elderly, expression, face, friendly, grandfather, grandpa, grey, hair, handsome, happiness, happy, human, lifestyle, looking, male, man, mature, maturity, natural, nature, old, older, one, outdoors, outside, pensioner, pensive, people, person, portrait, relaxed, retired, retirement, senior, serenity, smile, thoughtful, white,