Ключевые слова: accident, agriculture, attention, background, barricade, barrier, caution, concept, construction, country, countryside, crime, crossing, danger, dangerous, entry, farm, fence, field, forbidden, grass, green, landscape, line, nature, park, police, protect, protection, railroad, railway, red, restricted, road, rural, safety, secured, security, sign, sky, stop, striped, summer, tape, traffic, train, travel, warning, white, zone,