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]: duck, get down, fall, stoop, cow
[A]: cow


[Q]: valley, house, cabin, squashed, flat
[A]: valley


[Q]: winch, steam roller, crane, windlass, dump truck
[A]:
winch