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:
remorseful, flat, melancholy, down, shameful
answer:
flat


question:
lifeline, knockout, deck, punch, tko
answer:
lifeline


question:
hike, wrestle, iguana, fish, canoe
answer:

iguana