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]: hiking, stingray, shark, fish, tiger
[A]: hiking


[Q]: miserable, emotional supports, down, kind, south
[A]:
south