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: group, clan, hamburger, club, bar

A: hamburger
****
Q: file, prepare, document, space, folder

A: prepare
****
Q: social, identity, colt, fawn, follow

A:
colt
****