large room with a high ceiling and white walls, seemingly a hall or lecture theatre

large room with a high ceiling and white walls, seemingly a hall or lecture theatre. There are rows of wooden benches or seats filled with people, mostly from the back, so their faces are not clearly visible. Some people are standing and moving around, including a group on a raised platform at the back of the room near a window. The light is bright, suggesting natural light from the window. There's also a television screen and an air conditioning unit mounted on the wall. The overall impression is of a gathering or meeting in a simple, unadorned space.