11.   He said it might weaken existing structures if excessive water was extracted from the ground.

12.   He said firefighters were unable to immediately search one floor for bodies because the fire badly weakened the structure.

13.   Heavy rains that fell in recent days may have weakened the structure, residents said.

14.   In Southeast Asia, the financial crisis could lead to instability if the economic readjustments prove to be symptoms of weakening government structures, Clarke said.

15.   Moisture had seeped into the very pores of the building, badly weakening the structure.

16.   Sand with high salt content was used, further weakening the structure.

17.   Sea sand with high salt content was used, further weakening the structure.

18.   The builders of a bridge that collapsed during the opening of the Maccabiah Games accused police of weakening the structure by driving vehicles across it, newspapers reported Thursday.

19.   The contracters who built the bridge have accused police of weakening the structure by driving across it but police have said no vehicles were driven across the bridge Monday.

20.   The contractors who built the bridge have accused police of weakening the structure by driving across it but police have said no vehicles were driven across the bridge Monday.