Ключевые слова: abstract, backdrop, background, black, concept, construction, direction, gravel, gray, grey, ground, hard, industry, iron, junction, light, line, long, material, natural, nature, outdoor, pattern, pebble, perspective, rail, railroad, railway, road, rock, rough, round, sky, speed, steel, stone, sunrise, sunset, surface, texture, textured, train, transport, transportation, travel, way,