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, fire, retire, air, remove
[A]: air


[Q]: early, water, delayed, history, current
[A]: water


[Q]: glass, translucent fabric, acrylic, cup, fiberglass
[A]:
cup