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.

[EX Q]: doorstep, community, open-faced, club, hoagie
[EX A]: community

[EX Q]: fair, even, milky, ghostly, luke
[EX A]: luke

[EX Q]: current, flow, up to the moment, water, course
[EX A]:
up to the moment