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.

Input: Consider Input: Category: physical property 
Words: large, fat, capacitance, calories, ugly

Output: calories


Input: Consider Input: Category: employment activity 
Words: sack, inferno, promote, empower, fire

Output: inferno


Input: Consider Input: Category: emotional status 
Words: comfortable, mad, decent, fine, beautiful


Output: beautiful