Ключевые слова: ad, attention, baby, ban, bin, caution, core, danger, do, drop, emblem, environment, figure, forbidden, fork, garbage, hand, hazard, icon, illustration, information, lift, litter, materials, message, no smoking, not, notice, operating, person, prohibited, recycle, reduce, reuse, rubbish, security, set, sign, signal, silhouette, stop, symbol, throwing, trash, warning, waste,