It is almost certain that Bernhard is a frog. It is probable that John discarded the milk. It is probable that Sandra grabbed the apple.
It is certain that john discarded the milk, or Bernhard is a frog.
It is certain that john discarded the milk, or Bernhard is a frog.
It is unlikely that john discarded the milk, or Bernhard is a frog.
John discarded the milk, or Bernhard is a frog.