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: geese, crouch, duck, elephant, mallet

Answer: crouch


Question: fighter, boring, popular, standard, general

Answer: fighter


Question: hatchling, fawn, love, pester, lust

Answer:
hatchling