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: color, medium, fair, warm, size

Output: warm


Input: Consider Input: amalgamated, firm, unyielding, shareholders, ceo

Output: unyielding


Input: Consider Input: fire, earth, water, blaze, recruit


Output: recruit