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: neck, swift, egret, tackle, crane

A: tackle
****
Q: goodies, wienerwurst, frank, hot dog, brash

A: brash
****
Q: mild, tone, tangle, fair, endure

A:
tone
****