It is unlikely that Brian is green. We doubt that John went to the garden. It is likely that Bernhard is a swan. It is highly likely that if either Brian is green, or John went to the garden, then Julius is white. We believe that if either Bernhard is a swan, or John went to the garden, then Fred is in the bedroom. It is likely that if John went to the garden, and Bernhard is a swan, then Greg is a frog.
It is almost certain that either Fred is in the bedroom, or Brian is green.
Chances are about even that either Fred is in the bedroom, or Brian is green.
It is almost certain that either Fred is in the bedroom, or Brian is green.
Either Fred is in the bedroom, or Brian is green.