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

[EX Q]: pack, hearts, deck, queen, rudder
[EX A]: rudder

[EX Q]: cool, fair, ok, tone, ghostly
[EX A]:
ok