Ключевые слова: article, blue, book, color, colour, cover, cyan, document, education, encyclopedia, green, hardcover, history, information, learn, learning, library, literature, modern, novel, object, orange, page, paper, print, publish, rainbow, read, reading, red, school, science, sheet, space, story, student, studying, teach, teacher, textbook, title, violet, white, wisdom, write, writer, yellow,