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: police punishment 
Words: prison, fine, calm, money, suspension

Output: calm


Input: Consider Input: Category: emotional display 
Words: pester, fawn, suppressed, follow, woods

Output: woods


Input: Consider Input: Category: employment activity 
Words: fire, flame, empower, hire, instruct


Output: flame