21.   Swimming pools were used to strengthen wasted limbs.

22.   The company said the problem was due to contamination of a material known as a plasticizer, used to strengthen the cigarette filter.

23.   Wolfowitz said part of the emergency funds the president is seeking from Congress will be used to strengthen U.S. military readiness for the fight against terrorism.

24.   Work hardening is used to strengthen materials in the forging process, used widely in manufacturing.

25.   She said the aid money would be used to strengthen democracy in South Africa.

26.   The contamination occurred at the company from which the cigarette maker obtained plasticizer, a material used to strengthen the filters, Philip Morris said.