21.   Their first attempt was called off and they began circling for a second attempt when, for some yet unexplained reason, they crashed.

22.   Then, for some unexplained reason, Lorraine confesses, too.

23.   Watson also has quit drinking for unexplained reasons.

24.   When Britain refused, the ship was set adrift on the Black Sea, where it was sunk for unexplained reasons.

25.   When the DNC resisted for unexplained reasons, incredible heat was applied.

26.   With experience, she has found that for unexplained reasons cooling the nerve for a week improves the outcome.

27.   According to Kluban, investigators think the pilot for an unexplained reason lost control of the plane and crashed into the sea.

28.   Bacher did not turn up for unexplained reasons.

29.   But for some unexplained reasons, Indians could not capitalise on the brand images and the blue chip reputation these companies had built over several decades.

30.   But progress was delayed, for unexplained reasons.