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.

Q: goodies, wienerwurst, frank, hot dog, brash

A: brash
****
Q: merchandise, excited, content, specialty, food

A: excited
****
Q: cold, stoop, fall, plunge, run

A:
cold
****