11.   She reappeared with grace and wit, still tenacious going after the ball, but mature in her understanding of its relative worth to precious life.

12.   Suddenly, you realize how precious life is.

13.   They also soften you in terms of how precious life is and how brittle it can be.

14.   Precious lives can be saved, and security can be reinforced and maintained.

15.   From looking at the suffering, they also learn how precious life is.

16.   Serious accidents have occurred, causing the loss of precious lives.