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: ok, mad, fine, bright, annoyed

Output: bright


Input: Consider Input: plain, mansion, condominium, squashed, flat

Output: plain


Input: Consider Input: duck, crane, mallet, egret, dump truck


Output: dump truck