context: It is highly likely that Mary got the milk. It is probably the case that Brian is a lion. It is unlikely that Sandra left the apple. We doubt that if either Brian is a lion, or Sandra left the apple, then John went to the garden. It is probably the case that if either Mary got the milk, or Brian is a lion, then Julius is gray. There is a better than even chance that if either Sandra left the apple, or Brian is a lion, then Bernhard is a frog.
hypothesis: Chances are about even that either Sandra left the apple, or Bernhard is a frog.
valid_hypothesis: Chances are about even that either Sandra left the apple, or Bernhard is a frog.
invalid_hypothesis: It is highly unlikely that either Sandra left the apple, or Bernhard is a frog.
hypothesis_assertion: Either Sandra left the apple, or Bernhard is a frog.