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: flap, glide, fly, train, bats

A: bats
****
Q: milky, fair, well, alright, impartial

A: milky
****
Q: pasty, calories, protein, sugar, fat

A:
pasty
****