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: motherboard, schedule appointments, schedule, file, type

Output: motherboard


Input: Consider Input: fret, angry, jack, nervous, emotionalities

Output: jack


Input: Consider Input: united, firm, leverage, streamline, taut


Output: taut