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.

[EX Q]: regular, general, captain, ubiquitous, popular
[EX A]: captain

[EX Q]: centimeter, yard, foot, milimeter, head
[EX A]: head

[EX Q]: wrestle, bat, canoe, fish, hunt
[EX A]:
bat