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.

Example Input: content, sad, panicked, item, happy
Example Output: item

Example Input: bored, amp, board, fret, truss rod
Example Output: bored

Example Input: money, well, fine, prime, hearing
Example Output:
well