It is likely that Greg is yellow. There is a very good chance that Bernhard is white. Chances are about even that Jessica is a cat. It is highly unlikely that if Bernhard is white, and Greg is yellow, then John went to the office. It is probable that if Jessica is a cat, and Greg is yellow, then Julius is a rhino. Chances are about even that if either Greg is yellow, or Bernhard is white, then Mary got the football.
We believe that either John went to the office, or Bernhard is white.
We believe that either John went to the office, or Bernhard is white.
It is probably not the case that either John went to the office, or Bernhard is white.
Either John went to the office, or Bernhard is white.