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: worried, angry, jack, fret, emotional upsets

Ex Output:
jack


Ex Input:
Category: animal 
Words: bird, flutter, jump, waggle, fly

Ex Output:
flutter


Ex Input:
Category: fried food 
Words: fried, seperate, sweet roll, fritter, croquet

Ex Output:

seperate