Ключевые слова: ahead, alert, area, attention, away, background, barrier, beware, black, blood, brick, building, caution, chain, construction, danger, dangerous, death, escape, fence, grunge, hand, hazard, icon, inscription, keep, link, message, no, old, outdoor, protection, red, restricted, risk, road, safety, security, sign, site, spray, symbol, urban, vintage, wall, warning, white, wire, work, zone,