Ключевые слова: abstract, architecture, backdrop, background, book, building, business, closeup, column, concept, construction, curve, decoration, decorative, document, dynamic, education, group, heap, knowledge, letter, line, literature, material, motion, office, page, paper, paperwork, pedestal, pile, pillar, project, publication, publish, shape, sheet, stack, staircase, stairs, stairway, stand, structure, surface, swirl, symbol, textbook, texture, twist, white,