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]: parrot, goose, crane, swallow, excavator
[A]: excavator


[Q]: closest, finished for the day, bordering, nearest, close
[A]: finished for the day


[Q]: fix, unlicensed, tart, fudge, smear
[A]:
tart