Cabbage juice (red) contains a chemical that changes its natural deep purple color to red in acids and blue in bases.
(Cabbage juice (red; contains; a chemical that changes its natural deep purple color to red in acids and blue in bases) (a chemical; changes; its natural deep purple color)
Cabbage juice (red a chemical
contains changes
a chemical that changes its natural deep purple color to red in acids and blue in bases
its natural deep purple color