Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Input: Consider Input: Category: weather 
Words: windy, stormy, fair, tone, tangle

Output: tone


Input: Consider Input: Category: police punishment 
Words: suspension, exquisite, prime, fine, flyaway

Output: exquisite


Input: Consider Input: Category: physical activity 
Words: summer, fall, tumble, trip, roll


Output: summer