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: emotional status 
Words: fret, emotional supports, output cord, angry, concerned

Ex Output:
output cord


Ex Input:
Category: animal 
Words: trap, dog, fish, tiger, horse

Ex Output:
trap


Ex Input:
Category: weather 
Words: sunny, fair, trustworthy, deal, clime

Ex Output:

trustworthy