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: bird 
Words: crane, hoist, egret, tackle, ostrich

Ex Output:
hoist


Ex Input:
Category: direction 
Words: down, opposite of up, sliding, forward, emotional state

Ex Output:
emotional state


Ex Input:
Category: fried food 
Words: skin, seperate, sweet roll, danish, fritter

Ex Output:

seperate