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: employment activity 
Words: pay, instruct, heat, fire, scold

Output: heat


Input: Consider Input: Category: emotional status 
Words: fine, relaxed, comfortable, prime, content

Output: prime


Input: Consider Input: Category: outdoor sport activity 
Words: hike, hunting, dolphin, wrestle, fish


Output: dolphin