Ключевые слова: back, background, blue, brown, children, closeup, college, color, copy, copybook, copybooks, cover, diary, different, education, exercise, green, group, homework, learn, learning, lesson, many, message, note, notebook, object, office, orange, page, paper, personal, pink, pupil, purple, red, school, sheet, space, stack, stationery, student, study, studying, supply, text, textbook, university, work, yellow,