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, blt, french toast, hamburger, club
[EX A]: group

[EX Q]: fair, endure, mild, color, tangle
[EX A]: color

[EX Q]: fly, bee, flutter, fish, bats
[EX A]:
flutter