Situation: I am standing by the blackboard on my right facing the cart behind a chair while there is an office chair on my left within reach.
Alternative situations: Standing near the blackboard because I am erasing what's written on it to write something else, after that I would sit back again in the office chair that is on my left. I am facing the chair in front of me checking for stains on the seat, the blackboard is on my right side.
Question: What is on the left side of the office chair behind me?