31.   Trojans players traced their problems to an extremely poor practice Wednesday.

32.   U.S. Food and Drug Administration inspectors traced the problem to a Chicago dairy where pasteurized milk became contaminated with raw milk.

33.   Democratic Party Provisional Urban Councillor Steve Chan Kwok-leung said the problem could be traced to two factors.

34.   GM said Wednesday it has traced the problem to a bracket linking the lower control arm of the front suspension to the vehicle frame.

35.   Love jokingly traced the problem to his pro-am the day before.

36.   Like many Saudis, Yamani traces partnership problems to U.S. support for Israel.

37.   Officials first noticed the outbreak at a Pennsylvania college, and traced the problem to Acapulco after networking with other college health clinics, Reynolds said.

38.   Scientists since have traced the problem to a flaw in software in an on-board computer designed to keep the unmanned rocket on an even trajectory.

39.   Tagliabue said the NFL problems can be traced to a competitive environment and marketplace and escalating player costs.

40.   The medical problems were traced to a touch football game with his grandchildren the previous Thanksgiving.