( mbool 
   (
      (
         ( "2003-11-20-06:06"  "2003-11-20-06:17:50"  TRUE  FALSE ) TRUE )
      (
         ( "2003-11-20-06:17:50"  "2003-11-20-06:19:40"  TRUE  TRUE ) FALSE )
      (
         ( "2003-11-20-06:19:40"  "2003-11-20-06:45:40"  FALSE  FALSE ) TRUE )))