Ключевые слова: abstract, background, bend, box, bright, cart, checkered, curve, fence, flat, frame, freight, isolated, journey, ladder, line, locomotive, long, map, metal, metro, rail, railing, railroad, railway, road, route, set, shape, stairs, steel, subway, top, tourism, toy, track, traffic, train, tram, transit, transport, travel, view, wagon, wavy, way, white, wooden,