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: blue, wave, current, timely, drink
Example Output: timely

Example Input: fritter, whittle, divide, misuse, dumpling
Example Output: dumpling

Example Input: woo, cajole, fawn, lust, doe
Example Output:
doe