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.

Q: camp, fish, iguana, hike, kayak

A: iguana
****
Q: dog, goose, dodge, duck, cat

A: dodge
****
Q: folder, errands, correspondence, file, schedule appointments

A:
folder
****