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: blue, wave, current, timely, drink

A: timely
****
Q: motherboard, folder, hardware, file, schedule appointments

A: schedule appointments
****
Q: early, current, tide, up to the moment, do tests

A:
tide
****