Ключевые слова: african american, black woman, blur, caucasian, cheerful, couple, emotion, gesture, happy, hello, inside, interracial, joyful, lifestyle, man, metro, metropolitan, modern, multicultural, multiethnic, people, platform, pleased, positive, public, smiling, station, subway, together, train, transport, trip, tunnel, underground, urban, wagon, waving hand, woman, young adult,