1.   These relationships were a natural consequence of evolution working to produce mutual interactions from which all the species involved would benefit.

2.   In a statement tonight, Kent Messenger Group Newspapers said it had been working to produce a guide to the rail link.

3.   At a press conference Friday afternoon at his offices on Beacon Hill, Harshbarger emphasized how hard negotiators had worked to produce a reasonable deal.

4.   Albright said the NATO allies were working to produce a cost estimate by December and that she was certain that prospective members would pay their share.

5.   Computer technology can extend the audience for art ... if museums will work together to produce CDs with images and historical data on their holdings.

6.   Even now, at an undisclosed location, an army of monkeys is strumming away at computers, working to produce the screenplay.

7.   Farmers and Congress are working to produce new guest-worker programs that might alleviate agricultural chaos in the future.

8.   For years, in a kind of payback to his father, Carmichael has been working to produce a musical based on Hoagy Carmichael songs.

9.   More than a thousand scientists from institutions around the world worked to produce the dense matter, they said.

10.   No one can argue that the current closed system works to produce a budget on time.