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: brownies, falsification, fudge, rich, heavy

Ex Output:
falsification


Ex Input:
Category: poker 
Words: fold, suits, deck, sail, hearts

Ex Output:
sail


Ex Input:
Category: mode of transportation 
Words: ant, flutter, wave, jog, fly

Ex Output:

ant