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

Ex Output:
community


Ex Input:
Category: secretary duty 
Words: support, type, file, software, answer

Ex Output:
software


Ex Input:
Category: consumer product 
Words: content, activity, item, excited, specialty

Ex Output:

excited