Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Q: valley, house, cabin, squashed, flat

A: valley
****
Q: toast, club, community, grilled cheese, hamburger

A: community
****
Q: close, on top of, right there, open, near

A:
open
****