Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
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Question: Category: baby animals 
Words: bambi, cub, doe, lust, fawn

Answer: lust


Question: Category: type of sandwich 
Words: clan, lettuce, bacon, club, submarine

Answer: clan


Question: Category: baby animals 
Words: woo, fawn, hatchling, antling, cub

Answer:
woo