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: flyaway, penalty, prime, fine, comfortable

A: comfortable
****
Q: alright, size, dishonest, fine, fair

A: size
****
Q: inferno, cool, replace, water, fire

A:
replace
****