Situation: I am cleaning a coffee table with a bookshelf behind me and a couch on my left.
Alternative situations: I put down my soda on the coaster on the coffee table in front of me, the couch is on my left side. I am in front of a bookshelf holding a book in front of the coffee table near the couch with a backpack on the left of me.
Question: Is the amount of bookshelves behind me odd or even?