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: honorable, medium, trustworthy, fair, balanced
Example Output: medium

Example Input: fearful, content, substance, program, thing
Example Output: fearful

Example Input: fair, well, color, 70, level
Example Output:
70