Ключевые слова: antique, apple, autumn, back, background, book, brown, business, clock, color, concept, eat, expertise, food, frame, fruit, green, group, health, healthy, information, isolated, knowledge, learning, leaves, library, life, literature, object, old, page, paper, reading, red, retro, school, snack, stack, study, studying, symbol, teaching, textbook, view, vintage,