11.   Whatever the source, all witch hazels prefer well-drained, fertile soil, slightly on the acid side.

12.   Whatever the source of the problems, both federal regulators and lawmakers increasingly are worried that accounting errors are diminishing confidence in U.S. financial markets.

13.   Whatever the source, no one is saying that the United States has seen the worst of it.

14.   Whatever the source, those young people are in the market.