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: hotel, level, flat, even, lined
Example Output: lined

Example Input: fudge, molasses, cream, tart, banned
Example Output: banned

Example Input: downward, loveful, down, south, lower
Example Output:
loveful