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: sail, bow, blind, dock, deck

A: blind
****
Q: doorstep, community, open-faced, club, hoagie

A: community
****
Q: dog, duck, swim, horse, cat

A:
swim
****