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: crying, truss rod, angry, emotional supports, fret

Answer: truss rod


Question: frank, bold, brash, precise, pork

Answer: pork


Question: frustrated, concerned, truss rod, crying, fret

Answer:
truss rod