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:
parrot, goose, crane, swallow, excavator
answer:
excavator


question:
miserable, ground, up, opposite of up, down
answer:
miserable


question:
bulky, angular momentum, pasty, fat, big
answer:

big