Ключевые слова: adult, aged, beard, book, bookcase, bookshelf, bookshop, camera, caucasian, cheerful, cognition, college, confident, consultant, education, elder, elderly, eyeglasses, face, glasses, grandfather, indoor, instructor, lecturer, library, literature, looking, male, man, mature, mentor, office, old, old man, older, pensioner, people, person, portrait, positive, professor, senior, senior citizen, senior male, senior man, study, teacher, tutor, university,