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]: ounce, foot, kilometer, milimeter, heel
[A]: heel


[Q]: hoist, neck, concrete pourer, hummingbird, crane
[A]: concrete pourer


[Q]: foot, knee, inch, arm, ankle
[A]:
inch