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.

[EX Q]: glass, wood, coating, knifer, woodwork
[EX A]: knifer

[EX Q]: output cord, fret, notes, frustrated, chord
[EX A]: frustrated

[EX Q]: icy, relaxing, relaxed, refreshing, cool
[EX A]:
relaxed