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: consumer product 
Words: fearful, content, merchandise, shop, program

Ex Output:
fearful


Ex Input:
Category: shady activities 
Words: cookies, wrongful, fudge, smuggled, smear

Ex Output:
cookies


Ex Input:
Category: weather 
Words: raining, stormy, warm, cool, fair

Ex Output:

cool