Ключевые слова: above, address, background, blank, clean, close, closed, closeup, colored, communication, concept, copy, correspondence, cover, delivery, design, document, empty, envelope, flap, flat, green, greenery, information, isolated, lay, mail, message, minimal, note, office, one, open, package, paper, piece, post, postal, postcard, receive, send, sign, small, space, symbol, top, two, up, view, white,