Ключевые слова: abstract, activity, audience, auditorium, background, blur, blurred, blurry, bokeh, business, chair, city, color, conference, congress, corporate, corporation, defocused, education, empty, event, hall, hotel, indoor, interior, learning, lecture, leisure, light, lounge, luxury, meeting, office, people, person, presentation, report, room, screen, seminar, speaker, stand, table, teach, training, urban, watch, white, workshop,