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]: blow, waste away, fritter, dally, croquet
[A]: croquet


[Q]: jack, string, crying, neck, fret
[A]: crying


[Q]: ostrich, duck, swan, fall, dog
[A]:
fall