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: date status 
Words: current, blue, detestings, up to the moment, history

Output: blue


Input: Consider Input: Category: geographical property 
Words: mountain, flat, hill, mansion, plain

Output: mansion


Input: Consider Input: Category: aesthetic characteristic 
Words: fine, happy, hot, neat, classy


Output: happy