I have a college campus. A dorm-room is a kind of room.
A dresser is a kind of container. A desk is a kind of supporter.
Every dorm-room contains a dresser.
Every dorm-room contains a desk.
Now if I want an object to be inside the desk in Chrissy’s Dorm Room, how do i specify that desk? Is it “desk in Chrissy’s dorm room” or “a random desk which is in chrissy’s dorm room” or “Chrissy’s Dorm Room’s Desk”?