Ключевые слова: abandoned, aigenerated, background, blackboard, blank, blurred, calm, classroom, clear, copy, deserted, desk, desks, educational, empty, environment, individual, isolated, lone, people, quiet, room, school, seats, setting, silent, solitary, space, spacious, students, teachers, uncrowded, undisturbed, uninhabited, unoccupied, unused, vacant, without,