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:
firm, tough, solid, hard, streamline
answer:
streamline


question:
blow, waste away, fritter, dally, croquet
answer:
croquet


question:
emotionalities, emotional supports, down, unhappy, descending
answer:

descending