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: shady activities 
Words: invent, smuggled, smear, fudge, pie

Ex Output:
pie


Ex Input:
Category: emotional status 
Words: shameful, down, descending, sad, loveful

Ex Output:

descending