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: fair, unprejudiced, impartial, honorable, variety
Example Output: variety

Example Input: duck, get down, fall, stoop, cow
Example Output: cow

Example Input: flat, level, mansion, smooshed, elevation
Example Output:
mansion