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: poker 
Words: call, sail, deck, board, queen

Output: sail


Input: Consider Input: Category: animal 
Words: goat, stingray, tiger, hike, fish

Output: hike


Input: Consider Input: Category: secretary duty 
Words: errands, fax, file, type, ram


Output: ram