image tag: textbook, main color: gray, image quantity: 10

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dark, room, book, binding, black and white, literature, education
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mathematics, count, science, study, logarithm, algebra, paper
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library, books, education, literature, school, knowledge, study
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fountain, writing, pen, dictionary, words, letters, lookup
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ripe, apple, black, book, textbook, class, classroom
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study, a chemistry textbook, the teacher, student, one person, waist up, holding
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grammar, abc, dictionary, words, letters, lookup, reading
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book, open book, leaf, mind, renew, black and white, paper
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phone, screen, technology, mobile, internet, telephone, smartphone
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love, heart, romance, color, pattern, valentine, gift