Situation: I am putting my jacket down on the table with the wall to my immediate left.
Alternative situations: I am reading a book at the end of the table. There are bookshelves a few feet from me to the right. Just entered a room through a door in my seven o'clock direction, I put my jacket on a table and reached for a chair in my one o'clock direction.
Question: Are there an odd or even number if bookshelves?