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: weather 
Words: sunny, loyal, tangle, fair, raining

Output: loyal


Input: Consider Input: Category: physical activity 
Words: tumble, summer, fall, bend, lift

Output: summer


Input: Consider Input: Category: activity 
Words: goodbye, pastry, fritter, dally, squander


Output: pastry