context: It is unlikely that Bernhard is a lion. Chances are about even that Mary moved to the garden. There is a very good chance that Julius is a rhino. There is almost no chance that if Bernhard is a lion, or Mary moved to the garden, then John picked up the apple. Chances are about even that if Julius is a rhino, or Bernhard is a lion, then Brian is yellow. There is a better than even chance that if Mary moved to the garden, and Bernhard is a lion, then Antoine is bored.
hypothesis: There is a very good chance that either John picked up the apple, or Julius is a rhino.
valid_hypothesis: There is a very good chance that either John picked up the apple, or Julius is a rhino.
invalid_hypothesis: There is almost no chance that either John picked up the apple, or Julius is a rhino.
hypothesis_assertion: Either John picked up the apple, or Julius is a rhino.