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]: arrest, fine, ticket, beautiful, custody
[EX A]: beautiful

[EX Q]: fly, grasshopper, walk, waggle, train
[EX A]: train

[EX Q]: elbow, foot, ounce, yard, mile
[EX A]:
elbow