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]: current, wave, whirlpool, sea, data sets
[A]: data sets


[Q]: ecstatic, content, disappointed, sad, service
[A]: service


[Q]: jog, fly, run, jump, pounce
[A]:
jog