Ключевые слова: background, book, chalk, class, classroom, collection, college, concept, cover, culture, desk, document, education, element, elementary, equipment, group, homework, information, isolated, knowledge, learn, learning, library, literature, note, notebook, object, open, page, paper, read, reading, school, science, space, stack, student, study, studying, supplies, template, text, textbook, university, vintage, wall, white, wisdom, writing,