91.   The poor little thing must have thought I was mad at her for some unknown reason.

92.   The ship was set adrift in the Black Sea and at dawn the next day it was sunk by a Russian submarine for unknown reasons.

93.   The suspect then took a six-year hiatus for unknown reasons, officials said.

94.   Three died because their heart rate and blood pressure suddenly plummeted in surgery, for unknown reasons.

95.   This step, for some unknown reason, has so far proved impossible for biologists who have followed the same trail with mouse cells.

96.   While fat disappears from some areas, for unknown reasons it redistributes to build up in others.

97.   With glaucoma, for unknown reasons, the eye produces fluid faster than it can get rid of it.

98.   President Hafez Assad called for the mini-summit in Damascus after Saudi Arabia declined to host the parley for unknown reason.

99.   A nuclear reactor at the Zaporizhia nuclear power plant in southern Ukraine was shut down early Thursday for unknown reasons, nuclear officials said.

100.   According to preliminary findings, the blast appears to have been caused by explosives placed beside the Game Boy for unknown reasons, the ministry said.