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: duck, cat, stoop, swan, goose

Output: stoop


Input: Consider Input: deck, knockout, bow, sail, rudder

Output: knockout


Input: Consider Input: lieutenant, typical, universal, general, ordinary


Output: lieutenant