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: annoyed, detailed, well, fine, content

A: detailed
****
Q: equitable, size, level, fair, even

A:
equitable
****