Ключевые слова: 10, advise, alert, attention, board, button, careful, caution, down, escalator, floor, go, icon, info, information, internet, lift, lines, mall, motion, move, people, public, recommendation, ride, safety, search, shopping, sign, single, speed, stair, staircase, stairway, step, stick, stickers, success, symbol, technological, transportation, walk, walkway, warn, web, yellow,