Ключевые слова: antiquities, background, black, blackboard, books, business, cement, chalk, circle, class, concept, desk, drawn, earth, education, environment, figure, glasses, global, globe, grunge, hand, idea, learn, lecture, library, maintenance, map, model, move, museum, nature, ocean, paper, pirate, plastic, school, sign, spin, study, symbol, table, technology, toy, travel, wall, white, wood, wooden, world,