It is unlikely that Brian is a swan. There is a very good chance that Sandra left the football. We believe that Lily is a frog. It is improbable that if Lily is a frog, or Brian is a swan, then Mary went to the kitchen. Chances are about even that if Sandra left the football, or Lily is a frog, then Bernhard is gray. It is impossible that if Sandra left the football, and Lily is a frog, then John moved to the office.
There is a very good chance that sandra left the football, and John moved to the office.
It is impossible that sandra left the football, and John moved to the office.
There is a very good chance that sandra left the football, and John moved to the office.
Sandra left the football, and John moved to the office.