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: merchandise, specialty, tools, content, angry

Output: angry


Input: Consider Input: space, file, answer calls, fax, support

Output: space


Input: Consider Input: firm, shareholders, common, alignment, taut


Output: taut