It is likely that Jessica is a mouse. It is improbable that John went to the garden. Chances are slight that Sandra dropped the milk. There is little chance that if Jessica is a mouse, or John went to the garden, then Bernhard is white. There is little chance that if Jessica is a mouse, or Sandra dropped the milk, then Greg is a rhino. It is probably not the case that if Sandra dropped the milk, or John went to the garden, then Julius is a swan.
It is likely that either Sandra dropped the milk, or Bernhard is white.
It is unlikely that either Sandra dropped the milk, or Bernhard is white.
It is likely that either Sandra dropped the milk, or Bernhard is white.
Either Sandra dropped the milk, or Bernhard is white.