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: poker 
Words: punch, pack, deck, check, fold

Ex Output:
punch


Ex Input:
Category: animal 
Words: ant, walk, bike, fly, dangle

Ex Output:
bike


Ex Input:
Category: physical activity 
Words: goose, duck, fall, jog, squat

Ex Output:

goose