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: closest, finished for the day, bordering, nearest, close
Example Output: finished for the day

Example Input: ubiquitous, general, basic, major, popular
Example Output: major

Example Input: luke, fair, mild, 70, color
Example Output:
color