Ключевые слова: advice, advisory, backdrop, background, blue, brown, coast, coastal, ferns, foliage, fronds, green, hawthorn, hazard, hazard warning, hazard warning sign, information, metal, nature, notice, ocean, old, outdoors, public notice, public pathway, rust, rusted, rusting, rusty, sea, shadow, sign, signage, signpost, sky, soiled, steel, text, tube, tubular, vegetation, warning, white, wording,