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: folder, hardware, file, firewall, support
Example Output: support

Example Input: lead, glass, spoon, fiberglass, spyhole
Example Output: spoon

Example Input: fine, beautiful, neat, well, there
Example Output:
well