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: fair, color, unprejudiced, fine, decent

A: color
****
Q: geese, crouch, duck, elephant, mallet

A: crouch
****
Q: level, lined, flat, even, valley

A:
level
****