Ключевые слова: background, bathroom, booking, boundary, business, buy, closed, contour, control, design, female, gender, icon, illustration, isolated, label, light, line, linear, male, mobile, object, outline, protection, rail, railroad, railway, restroom, road, safety, semaphore, set, sign, signal, stop, stoplight, symbol, traffic, train, transport, transportation, warning, washroom, way, wc, web,