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: outdoor sport activity 
Words: wrestle, fish, iguana, hiking, hunt

Ex Output:
iguana


Ex Input:
Category: date status 
Words: current, blue, detestings, up to the moment, history

Ex Output:
blue


Ex Input:
Category: shady activities 
Words: invent, unlicensed, brownies, lie, fudge

Ex Output:

brownies