Ключевые слова: 3d, academic, apartment, architecture, background, black, blackboard, blank, board, business, ceiling, chalk, chalkboard, class, college, concept, concrete, copy, copyspace, education, empty, estate, floor, frame, illustration, indoor, inside, interior, lamps, lecture, loft, mock, mockup, nobody, parquet, pattern, portfolio, real, render, rendering, room, sample, space, study, template, university, up, wall, white, wooden,