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]: heat, hire, burn, air, fire
[A]: hire


[Q]: concerned, strap lock, anxious, bored, fret
[A]: strap lock


[Q]: frame, acrylic, coating, glass, dish
[A]:
dish