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: type of sandwich 
Words: roll, hoagie, bacon, club, community

Output: community


Input: Consider Input: Category: animal 
Words: pounce, fly, swim, walk, walk

Output: walk


Input: Consider Input: Category: type of sandwich 
Words: bar, club, french toast, burger, hamburger


Output: bar