21.   Some are tweaking their original concepts.

22.   St. Florian says his original concept has been altered so that the vista between Lincoln Memorial and Washington Monument was not obstructed.

23.   The father of the original Mommy list concept was a nuclear engineering grad student at the University of Illinois at Champaign-Urbana.

24.   The GWGs, which seemed to be doomed after the end of the Cold War made the original concept moot, are thriving.

25.   The idea that doctors should know a few drugs and know them well was the original concept behind formularies, or restricted lists of medications.

26.   The original concept of the Rockettes dance line was to achieve absolute precision, as if the dancers were moving as one.

27.   The original concept for the DUKW was borne out of wartime necessity, Tracey said.

28.   The original concept of the drug war is not a bad comparison to the new war on terrorism, several security specialists said.

29.   The original concept refused to be molded into a shape that made everyone happy.

30.   The original concept was for him to come back at the end of the episode and apologize for being overly sensitive.