Ключевые слова: attention, background, blue, board, brown, circle, dark no stopping sign, dingy, dried, fence, floor, horizontal, knot, knotted wood, knotty, material, no standing sign, old, out of color, pattern, plank, prohibition, prohibition sign, rake, red, road sign, rough, round, symbol, texture, textured, timber, traffic sign, wall, warning, white, wood, wooden,