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: sausage, hot dog, concise, frank, weenie

Output: concise


Input: Consider Input: fret, sad, amp, fingerpick, string

Output: sad


Input: Consider Input: knife, plastic, glass, metal, wood


Output: knife