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


[Q]: bow, fold, hull, deck, head
[A]: fold


[Q]: tangle, raining, luke, fair, texture
[A]:
texture