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: flyaway, penalty, prime, fine, comfortable

A: comfortable
****
Q: late, up to the moment, current, course, belated

A: course
****
Q: dock, head, rudder, deck, call

A:
call
****