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.

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

Output: upraise


Input: Consider Input: Category: police punishment 
Words: classy, probation, custody, fine, flyaway

Output: classy


Input: Consider Input: Category: bird 
Words: hoist, sandpiper, crane, swallow, heron


Output: hoist