Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Input: Consider Input: glove, ring, deck, box, bow

Output: bow


Input: Consider Input: space, file, answer calls, fax, support

Output: space


Input: Consider Input: level, cabin, flat, lined, horizontal


Output: cabin