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.

[EX Q]: fret, angry, jack, nervous, emotionalities
[EX A]: jack

[EX Q]: leverage, solid, firm, amalgamated, concerted
[EX A]: solid

[EX Q]: bee, bird, fly, swim, pounce
[EX A]:
swim