Ключевые слова: bag, board, book, building, business, calendar, cap, certificate, clip, collection, college, computer, design, diploma, education, element, flat, graduate, graduation, hat, house, icon, illustration, knowledge, learning, library, line, logo, media, office, online, outline, paper, paper plane, pen, pencil, ruler, school, science, set, sign, student, study, studying, symbol, technology, toga, university, web,