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: duplex, studio, cabin, horizontal, flat

A: horizontal
****
Q: group, clan, hamburger, club, bar

A: hamburger
****
Q: run, dive, jog, fly, jump

A:
jog
****