31.   It was the third incident in five days involving the airline.

32.   It was the third such incident in recent days involving the arrest of people in small boats by Turkish forces.

33.   It was the third violent incident involving visitors from the U.S. mainland in the last six weeks.

34.   It was the third shooting incident at the White House in two months.

35.   It was the third such incident in two years.

36.   It was the third such incident on a Greyhound bus in a month.

37.   It was the third such incident since April in Bangui, where soldiers have accused President Ange-Felix Patasse of undermining their power and falling behind on salaries.

38.   It was the third violent incident at the University of North Sumatra in Medan since Friday, when students threw gasoline bombs at anti-riot officers carrying clubs and shields.

39.   It was the third incident in two weeks at the plant.

40.   It was the third incident this year involving the same Alaska Airlines route.