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: animals 
Words: duck, jog, cat, pig, mallet

Output: jog


Input: Consider Input: Category: moral characteristic 
Words: windy, fair, just, ok, loyal

Output: windy


Input: Consider Input: Category: accomodation 
Words: flat, level, house, round, hotel


Output: level