description: ket-sort sp natural sort the given superposition by its ket labels examples: the-list-of |cities> => |Brisbane> + |Perth> + |Darwin> + |Hobart> + |Sydney> + |Melbourne> + |Adelaide> ket-sort the-list-of |cities> |Adelaide> + |Brisbane> + |Darwin> + |Hobart> + |Melbourne> + |Perth> + |Sydney> see also: coeff-sort, shuffle, reverse