Ключевые слова: accident, agriculture, alert, area, attention, background, banner, barrier, black, blue, border, caution, construction, countryside, crime, danger, design, enter, environment, farm, fence, field, grass, green, illustration, isolated, landscape, line, meadow, natural, nature, outdoor, police, protection, restricted, ribbon, safety, security, sign, stop, stripe, striped, sunny, symbol, tape, warning, white, yellow, zone,