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]: angular momentum, fat, calcium, brittleness, ugly
[EX A]: calcium

[EX Q]: bus, fly, swim, spider, flap
[EX A]: spider

[EX Q]: tone, fair, 70, cold, windy
[EX A]:
tone