Ключевые слова: academic, author, back, background, book, cap, class, classroom, college, concept, copy, degree, desk, diary, diploma, document, education, feather, graduate, handbook, hat, ink, intelligence, isolated, knowledge, lecture, lesson, library, literature, master, mortarboard, page, paper, pen, school, scroll, sheet, space, stack, student, study, table, text, textbook, time, university, watch, writer,