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: animal 
Words: bus, leap, spider, run, fly

Ex Output:
bus


Ex Input:
Category: boxing terminology 
Words: pack, level, deck, corner, jab

Ex Output:
pack


Ex Input:
Category: fried food 
Words: dumpling, patty, danish, waste, fritter

Ex Output:

waste