Ключевые слова: abstract, arrow, background, billboard, blue, board, bright, building, buildings, business, city, concept, copy, danger, day, design, destination, direction, door, emergency, entrance, escape, exit, fence, fire, graphic, guide, information, light, message, metal, neon, new, nobody, plate, pointing, red, safety, sign, signpost, sky, space, symbol, text, tourism, town, vivid, warning, way, white,