Situation: I am picking up my backpack with a couch on my left within reach.
Alternative situations: I trip over the backpack resting on the ground in front of the door. With a couch on my left and one more in my 8 o'clock direction, I am picking up a backpack from a floor, planning to leave through a front door now.
Question: What is behind the shelf that is on my 5 o'clock?