Ключевые слова: black, closeup, color image, colors, computer graphic, contour drawing, department of transportation, frame, geometric shape, george washington, isolated on white, no people, north america, number, number 20, outline, portrait, profile, quadratic, reflection, road sign, route sign, shield, side portrait, side view, sideface, sign, silhouette, square, square shape, state, state highway, state route, symbol, thoroughfare, traffic, traffic rules, transportation, usa, washington dc, white,