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]: climbing, cow, hiking, fish, wrestle
[EX A]: cow

[EX Q]: inlays, concerned, string, notes, fret
[EX A]: concerned

[EX Q]: support, fax, file, download, errands
[EX A]:
download