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: prison, mad, arrest, fine, wispy
Example Output: mad

Example Input: decent, well, flaxen, fair, unjust
Example Output: flaxen

Example Input: honorable, cool, fair, texture, even
Example Output:
honorable