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: fair, make the grade, trustworthy, alright, just

A: make the grade
****
Q: bold, frank, honesty, fortitude, meat

A:
meat
****