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: sugars, fat, protein, skinny, iron

A: skinny
****
Q: medium, unjust, flaxen, fair, texture

A: unjust
****
Q: board, blocking, deck, caution, canvas

A:
board
****