61.   Police offered various theories on the motive, from bank robbery to reprisal for the arrest of six alleged Islamic extremists in Manila last Sunday.

62.   Police offered no theories on motives for the bombings, which came a day after military leader Pervez Musharraf won a referendum to remain president for another five years.

63.   Police offered various theories on the motive for the Ipil raid, from bank robbery to reprisal for the arrest of six alleged Islamic extremists in Manila last Sunday.

64.   Scientists and popular writers debate their purpose, offering such theories as a calendar, a map of underground water supplies and landing strips for space aliens.

65.   Sedoruk offered a theory to explain the high rate of stings.

66.   The report offers no theory as to why that is the case.

67.   While it is unclear how head injury is related to depression, Holsinger and colleagues offer some theories.

68.   Woods, a five-time participant in the contest, offered several theories on what led to his win.

69.   But officials Friday offered contradictory theories as to the cause of the accident.