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]: hoist, crane, excavator, winch, windlass
[EX A]: hoist

[EX Q]: persistent, cool, level, scorching, funny
[EX A]: scorching

[EX Q]: fiber, heavy, calcium, fat, heavy
[EX A]:
heavy