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: doorstep, community, open-faced, club, hoagie
Example Output: community

Example Input: admiral, general, cadet, sergeant, ordinary
Example Output: ordinary

Example Input: misuse, fritter, seperate, pastry, goodbye
Example Output:
pastry