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]: group, clan, hamburger, club, bar
[EX A]: hamburger

[EX Q]: fly, glide, flutter, eagle, train
[EX A]: eagle

[EX Q]: angular momentum, absorption, ugly, fiber, fat
[EX A]:
fiber