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: corporate 
Words: corporation, firm, alignment, taut, leverage

Output: taut


Input: Consider Input: Category: chocolate food 
Words: fudge, tart, chocolate cake, falsehood, cupcake

Output: falsehood


Input: Consider Input: Category: location (proximity) 
Words: neighboring, close, nearer, out of service, on top of


Output: out of service