What is it?

Ok here, we could see on the left corner- a door, then, on the right corner another door. What about the one in the center? Is it another door?? Yes..this is another door, but this door, is kinda different from the two doors, at the side. It is actually a lift. I don't know whether you have seen this before, but, here in Kursk- most of the hospitals have such big lift, and is designed in a very ancient way. Did you see a chair there inside the lift? This chair is prepared for the nurse who is on duty in the lift on that day. This lift can accommodate about 10-11 people, but, the funniest thing is, the nurse allows only 5-6 people for each trip. This rule is applied especially to the students. Anyways, we the students, has very rare chance to take the lift, as they would asked us to use the staircase instead.