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: round, duplex, flat, smooshed, townhome
Example Output: smooshed

Example Input: slow, shut, close, beside, out of service
Example Output: beside

Example Input: toast, club, dance hall, clan, picnic
Example Output:
toast