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: replace, fudge, cupcake, heavy, cream

Ex Output:
replace


Ex Input:
Category: bird 
Words: flamingo, crane, upraise, winch, goose

Ex Output:
upraise


Ex Input:
Category: emotional display 
Words: fawn, expression, woods, follow, flatter

Ex Output:

woods