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: content, sad, panicked, item, happy
Example Output: item

Example Input: frank, bold, brash, precise, pork
Example Output: pork

Example Input: regular, sergeant, major, general, cadet
Example Output:
regular