Ключевые слова: adult, alone, anxiety, anxious, atmosphere, background, city, concept, contemplation, dark, depressed, depression, despair, distant, dream, emotion, escape, expression, feeling, freedom, frustration, hope, human, journey, light, loneliness, lonely, look, man, melancholy, memory, mental, mind, modern, monochrome, mood, motion, nostalgia, nostalgic, peaceful, people, person, portrait, problem, psychology, quiet, railroad, railway, relax, sad, sadness, scene, silhouette, solitude, sorrow, sorrowful, station, street, train, tranquil, transport, transportation, travel, unhappy, urban, woman,