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: fat, area, ugly, capacitance, calcium

Output: calcium


Input: Consider Input: Category: shady activities 
Words: truffles, lie, falsehood, wrongful, fudge

Output: truffles


Input: Consider Input: Category: chocolate food 
Words: pie, truffles, lie, fudge, pudding


Output: lie