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: deck, board, cards, knockout, draw

Output: knockout


Input: Consider Input: tide, belated, signal, current, jetstream

Output: belated


Input: Consider Input: area, large, calcium, absorption, fat


Output: calcium