context: Chances are slight that Mary put down the milk. It is improbable that Bernhard is gray. Chances are slight that Lily is a lion. It is likely that if Bernhard is gray, and Lily is a lion, then Julius is a swan. There is a better than even chance that if Lily is a lion, or Mary put down the milk, then Brian is a rhino. We believe that if either Bernhard is gray, or Lily is a lion, then John went to the garden.
hypothesis: We doubt that lily is a lion, or John went to the garden.
valid_hypothesis: We doubt that lily is a lion, or John went to the garden.
invalid_hypothesis: It is certain that lily is a lion, or John went to the garden.
hypothesis_assertion: Lily is a lion, or John went to the garden.