51.   It was the second accident at the mine in the past month.

52.   It was the second accident involving the U.S. Navy in a little more than a month.

53.   It was the second bus accident in three days resulting in deaths of foreigners skiing in Austria.

54.   It was the second deadly accident in the region in less than two weeks.

55.   It was the second fatal accident in an Austrian auto rally event this season.

56.   It was the second serious accident involving a bus in recent weeks in Vietnam.

57.   It was the second such accident reported in four weeks.

58.   It was the second such accident this winter.

59.   It was the second train accident in Italy in two weeks.

60.   It was the second train accident in metropolitan Manila in less than a month.