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]: crane, winch, mallet, winch, flamingo
[EX A]: winch

[EX Q]: iguana, mice, climbing, fish, hamster
[EX A]: climbing

[EX Q]: support, image, file, firewall, document
[EX A]:
support