context: We doubt that John went to the hallway. There is a better than even chance that Bernhard is a lion. It is impossible that Greg is a rhino. It is probably not the case that if either Greg is a rhino, or John went to the hallway, then Mary left the apple. It is probably not the case that if Bernhard is a lion, and John went to the hallway, then Lily is yellow. It is probably not the case that if either John went to the hallway, or Bernhard is a lion, then Daniel dropped the milk.
hypothesis: It is improbable that either Greg is a rhino, or Daniel dropped the milk.
valid_hypothesis: It is improbable that either Greg is a rhino, or Daniel dropped the milk.
invalid_hypothesis: It is certain that either Greg is a rhino, or Daniel dropped the milk.
hypothesis_assertion: Either Greg is a rhino, or Daniel dropped the milk.