Ключевые слова: access, alert, attention, beware, block, blue, caution, communication, danger, enter, entrance, entry, exclamation, forbidden, halt, information, message, nature, no entry, no entry sign, nobody, not permitted, notice, outdoor, park, privacy, private property, prohibition, road, roadsign, safety, secure, security, sign, stop, stop sign, street, symbol, traffic, transport, transportation, tree, warn, zone,