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: bird 
Words: dump truck, pelican, goose, crane, derrick

Output: dump truck


Input: Consider Input: Category: aesthetic characteristic 
Words: level, fair, milky, sunny, well

Output: sunny


Input: Consider Input: Category: poker 
Words: cards, pack, joker, deck, knockout


Output: knockout