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: luke, equitable, clime, fair, mild

Output: equitable


Input: Consider Input: Category: mode of transportation 
Words: spider, fly, train, jog, car

Output: spider


Input: Consider Input: Category: aesthetic characteristic 
Words: mild, level, medium, fair, even


Output: mild