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: angry, joyful, tools, fearful, content

Ex Output:
tools


Ex Input:
Category: type of sandwich 
Words: french toast, community, club, burger, dagwood

Ex Output:
community


Ex Input:
Category: emotional status 
Words: content, there, fine, well, detached

Ex Output:

there