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]: glass, acrylic, wood, metal, plate
[A]: plate


[Q]: grasshopper, fly, walk, bus, eagle
[A]: bus


[Q]: prison, mad, arrest, fine, wispy
[A]:
mad