Ключевые слова: asleep, beautiful, beauty, brown, caucasian, child, childhood, concentration, concepts, counting, cute, dark, education, elementary, evening, exercise, exhaustion, fatigue, female, girl, hand, hard, homework, incandescent, indoors, kid, lamp, lamplight, lay, learning, lifestyle, little, mathematics, night, notebook, numbers, one, only, pen, people, person, preparation, room, schoolgirl, sitting, sleeps, student, studying, table, tired,