Ключевые слова: adult, amusing, background, beard, blood samples, business, caucasian person, chemist, chemist portrait, coat, confident, counselor, crazy, dangerous person, doctor, expression, face, fun, funny, gesture, happiness, happy, isolated, lab experiment, laboratory, lips, man, mouth, old, person, portrait, positive, professional, psychologist, science lab, scientific research, scientist, showing, smile, teeth, therapist, tongue, tongue out, white,