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]: deck, dock, galley, joker, hull
[EX A]: joker

[EX Q]: flap, glide, fly, train, bats
[EX A]: bats

[EX Q]: answer calls, correspondence, make coffee, motherboard, file
[EX A]:
motherboard