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]: brownie, fudge, wrongful, mangle, loosen
[EX A]: brownie

[EX Q]: deck, sail, crew, head, fold
[EX A]: fold

[EX Q]: warm, optimist, hot, relaxing, cool
[EX A]:
optimist