instruction:
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.
question:
format, image, fax, file, folder
answer:
fax


question:
doorstep, community, open-faced, club, hoagie
answer:
community


question:
signal, current, history, drink, flow
answer:

history