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]: fair, even, milky, ghostly, luke
[A]: luke


[Q]: colonel, ordinary, standard, ubiquitous, general
[A]: colonel


[Q]: pastry, whittle, fritter, doughnut, blueberry
[A]:
whittle