Situation: I am sitting on the second row from the table and there is no more chair to my left.
Alternative situations: I am standing between the two leftmost arranged chairs in the second row and I can see the backpack on the table in my 1 o'clock direction. I am sitting in the second row in the chair furthest to the left, while looking at the table further ahead slightly to my right.
Question: What on the wall to my right allows light into the room?