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: heat, hire, burn, air, fire

Output: hire


Input: Consider Input: nervous, frustrated, fret, jack, concerned

Output: jack


Input: Consider Input: emotional supports, board, amp, fret, neck


Output: emotional supports