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: shady activities 
Words: loosen, smuggled, chocolate, wrongful, fudge

Ex Output:
chocolate


Ex Input:
Category: bird 
Words: crane, sandpiper, hoist, windlass, goose

Ex Output:
windlass


Ex Input:
Category: employment activity 
Words: blaze, replace, pay, fire, retire

Ex Output:

blaze