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]: replace, ice, fire, ban, hire
[A]: ice


[Q]: current, history, wave, jetstream, whirlpool
[A]: history


[Q]: alert, content, ticket, alright, fine
[A]:
ticket