context: There is a very good chance that Bernhard is a rhino. Chances are about even that Brian is a lion. There is almost no chance that Sandra left the apple. It is highly unlikely that if either Bernhard is a rhino, or Sandra left the apple, then Lily is a frog. There is almost no chance that if either Sandra left the apple, or Brian is a lion, then Greg is a frog. It is almost certain that if Bernhard is a rhino, and Sandra left the apple, then Julius is gray.
hypothesis: It is highly likely that brian is a lion, or Bernhard is a rhino.
valid_hypothesis: It is highly likely that brian is a lion, or Bernhard is a rhino.
invalid_hypothesis: It is unlikely that brian is a lion, or Bernhard is a rhino.
hypothesis_assertion: Brian is a lion, or Bernhard is a rhino.