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: running., close, bordering, nearer, touching
Example Output: running.

Example Input: motherboard, schedule appointments, schedule, file, type
Example Output: motherboard

Example Input: glass, colander, dish, plate, panel
Example Output:
panel