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, caution, suits, queen, check
[EX A]: caution

[EX Q]: folder, hardware, file, firewall, support
[EX A]: support

[EX Q]: fish, bat, mice, dog, hiking
[EX A]:
hiking