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]: iguana, mice, climbing, fish, hamster
[A]: climbing


[Q]: ice, let go, fire, sack, replace
[A]: ice


[Q]: deal, 70, equitable, fair, raining
[A]:
equitable