There is a very good chance that Lily is a swan. There is little chance that Mary went to the garden. Chances are slight that Bernhard is white.
There is a very good chance that mary went to the garden, or Lily is a swan.
There is a very good chance that mary went to the garden, or Lily is a swan.
We doubt that mary went to the garden, or Lily is a swan.
Mary went to the garden, or Lily is a swan.