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: jump, drive, fly, eagle, beetle

Ex Output:
drive


Ex Input:
Category: moral characteristic 
Words: concise, brash, integrity, cheese, frank

Ex Output:
cheese


Ex Input:
Category: animal 
Words: dive, fly, bird, beetle, swim

Ex Output:

swim