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.
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Question: blocking, fold, deck, check, board

Answer: blocking

Question: blow, waste away, fritter, dally, croquet

Answer: croquet

Question: descending, down, south, opposite of up, miserable

Answer:
miserable