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.

Ex Input:
Category: chocolate food 
Words: brownie, loosen, chocolate cake, fudge, molasses

Ex Output:
loosen


Ex Input:
Category: weather 
Words: even, tangle, mild, fair, 70

Ex Output:
even


Ex Input:
Category: weather 
Words: sunny, warm, stormy, color, fair

Ex Output:

color