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:
backward, south, down, forward, shameful
answer:
shameful


question:
condominium, duplex, studio, flat, level
answer:
level


question:
file, text, space, software, sort mail
answer:

sort mail