21.   But those soft-wall tests proved inconclusive when it failed to hold up to simulated impacts.

22.   But the test quickly proved unreliable.

23.   Chemical tests have proved that it was printed with yellow ink and is not merely a green copy that has become discolored with time.

24.   Calisthenics ensue, but early flight tests prove unpromising.

25.   DNA tests prove that our third president, Thomas Jefferson, fathered at least one child with his young slave, Sally Hemings.

26.   DNA tests proved it was indeed his son.

27.   DNA tests have proven that a rumor about Mr. Clinton fathering a child by an Arkansas woman is false.

28.   DNA tests later proved it was Mosley who raped and killed Shandra.

29.   Earlier, four of the original German cattle were destroyed and tests later proved negative for BSE, Coats said.

30.   Dr. John Laszlo, vice president for research for the Atlanta- based American Cancer Society, said similar claims for earlier universal cancer tests proved untrue.