context: We doubt that Brian is a frog. There is almost no chance that Lily is a lion. We believe that Gertrude is a wolf. Chances are slight that if Gertrude is a wolf, and Lily is a lion, then Julius is gray. It is certain that if Brian is a frog, and Lily is a lion, then Mary picked up the milk. It is unlikely that if Gertrude is a wolf, or Lily is a lion, then John went to the kitchen.
hypothesis: There is a very good chance that lily is a lion, or Julius is gray.
valid_hypothesis: There is almost no chance that lily is a lion, or Julius is gray.
invalid_hypothesis: There is a very good chance that lily is a lion, or Julius is gray.
hypothesis_assertion: Lily is a lion, or Julius is gray.