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: construction 
Words: hoist, tackle, digger, excavator, crane

Output: tackle


Input: Consider Input: Category: body part 
Words: foot, knee, eye, leg, ounce

Output: ounce


Input: Consider Input: Category: police punishment 
Words: handsome, arrest, custody, fine, ticket


Output: handsome