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: shareholders, alignment, firm, sustainability, solid

Output: solid


Input: Consider Input: blunt, sausage, hot dog, frank, wienerwurst

Output: blunt


Input: Consider Input: expression, identity, paw, calf, fawn


Output: calf