Ключевые слова: ad, advertisement, advertising, background, banner, billboard, blank, board, books, business, city, commercial, communication, computer, connection, copy, data, device, direction, display, empty, equipment, frame, help, highway, info, information, internet, isolated, keypad, knowledge, message, metal, outdoor, panel, post, poster, professional, promotion, road, roadside, sign, signpost, space, street, symbol, traffic, transportation, way, www,