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: beautiful, classy, dull, comfortable, fine

A: comfortable
****
Q: pastry, dunker, fritter, blow, cake

A: blow
****
Q: truffles, falsification, mangle, lie, fudge

A:
truffles
****