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: body part 
Words: foot, knee, eye, leg, ounce

Output: ounce


Input: Consider Input: Category: aesthetic characteristic 
Words: loyal, medium, ghostly, tone, fair

Output: loyal


Input: Consider Input: Category: location (proximity) 
Words: adjacent, nearer, shut, close, neighboring


Output: shut