Study involves read book. Breathe does not involve use your mind. Get good grade does not involve exercise your voice. Study does not involve exercise your voice. Get good grade involves study. Pass class does not involve be proud. Pass class involves get good grade. Pass class does not involve exercise your voice. Die involves it get cold. You have free time involves read book. Breathe involves it get cold. Read book involves use your mind.
Study does not involve use your mind.