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]: goodies, wienerwurst, frank, hot dog, brash
[EX A]: brash

[EX Q]: money, fine, jail time, there, custody
[EX A]: there

[EX Q]: tough, sustainability, streamline, firm, leverage
[EX A]:
tough