21.   Now, an unprecedented effort between public and private agencies is under way to save the lowly prairie chicken.

22.   That launched a cooperative effort between groups better known in Israel for their confrontations.

23.   The Adopt an Underpass program is a concerted effort between the LAPD, City Councilman Joel Wachs, anti-crime organization Mad About Crime and the California Department of Transportation.

24.   The Navy carriers, stripped of their fighter jets, are ferrying Army troops and Army helicopters, the first such cooperative effort between the services.

25.   The new plan is a joint effort between Arbitron NewMedia and RadioWave.com Inc., the interactive radio subsidiary of Motorola.

26.   The players, however, prefer to emphasize the value of a cooperative effort between them and the owners.

27.   The plane would be the latest cooperative effort between Bombardier and Mitsubishi Heavy.

28.   The Roundtable likes to point out the successful cooperative effort between unions and child care workers in San Francisco earlier this year.

29.   The task force is a cooperative effort between the FBI and the New York Police Department.

30.   The weekend saw last-minute efforts between Royal Bank of Scotland and NatWest to broker a friendly merger.