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: firm, shareholders, common, alignment, taut

Output: taut


Input: Consider Input: vitamin c, salt, fat, big, absorption

Output: absorption


Input: Consider Input: trustworthy, cold, loyal, fair, dishonest


Output: cold