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: hull, galley, deck, lifeline, tko

A: tko
****
Q: bow, gunwale, crew, deck, blocking

A: blocking
****
Q: support, schedule, answer calls, hardware, file

A:
hardware
****