21.   So three years ago, the South African government began an experiment in privatization, soliciting bids to build and manage four prisons here.

22.   The Bolivians have already begun experiments growing crops in raised fields similar to those from prehistory.

23.   The boy begins his experiments by poisoning his stepmother, then nursing her patiently so he can make proper notations in his research journals.

24.   The Department of Transportation began an experiment outfitting a dozen ticket agents with mountain bikes.

25.   Then they began their experiment.

26.   To us it felt like hiking with ankle weights and wet jeans, particularly going uphill, which is where we unwisely began our experiment.

27.   When that failed, he said, bin Laden began experiments with chemical and biological warfare.

28.   Within the next year they should be able to begin experiments to genetically boost the vitamin C content of fruit and vegetables.

29.   A major Hollywood studio will begin an experiment next week making full-length feature films available for download over the Internet.

30.   American astronaut Michael Foale, who is expected to stay on Mir until mid-September, began experiments on sleep study and continued his greenhouse research and routine physical training.