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]: smooshed, horizontal, condominium, flat, valley
[A]: condominium


[Q]: duck, cat, stoop, swan, goose
[A]: stoop


[Q]: climbing, fish, stingray, horse, iguana
[A]:
climbing