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: sustainability, firm, amalgamated, combined, rigged

Output: rigged


Input: Consider Input: alright, detailed, annoyed, fine, calm

Output: detailed


Input: Consider Input: equitable, impartial, fair, endure, decent


Output: endure