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.

Q: close, nearest, touching, on top of, barred

A: barred
****
Q: answer calls, image, organize, file, correspondence

A: image
****
Q: cadet, average, general, lieutenant, soldier

A:
average
****