context: It is likely that Bernhard is a lion. It is unlikely that Julius is a frog. We doubt that Lily is gray. It is highly likely that if Bernhard is a lion, or Julius is a frog, then Mary put down the milk. We doubt that if Lily is gray, and Julius is a frog, then Greg is white. It is improbable that if either Julius is a frog, or Lily is gray, then Daniel dropped the apple.
hypothesis: We doubt that mary put down the milk, and Julius is a frog.
valid_hypothesis: We doubt that mary put down the milk, and Julius is a frog.
invalid_hypothesis: It is certain that mary put down the milk, and Julius is a frog.
hypothesis_assertion: Mary put down the milk, and Julius is a frog.