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.

Input: Consider Input: hot, classy, pretty, fine, probation

Output: probation


Input: Consider Input: nervous, frustrated, fret, jack, concerned

Output: jack


Input: Consider Input: tackle, parrot, duck, crane, davit


Output: tackle


