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: boxing terminology 
Words: deck, tko, box, glove, sail

Output: sail


Input: Consider Input: Category: boats 
Words: deck, call, galley, bridge, stern

Output: call


Input: Consider Input: Category: outdoor sport activity 
Words: fish, kayak, raft, camp, sea turtle


Output: sea turtle