context: We believe that Bernhard is a frog. Chances are about even that Sandra grabbed the milk. It is highly unlikely that Daniel dropped the milk. It is improbable that if either Daniel dropped the milk, or Sandra grabbed the milk, then Fred is in the bedroom. It is certain that if Bernhard is a frog, or Daniel dropped the milk, then John moved to the garden. It is improbable that if Bernhard is a frog, and Daniel dropped the milk, then Brian is a lion.
hypothesis: We believe that bernhard is a frog, or John moved to the garden.
valid_hypothesis: We believe that bernhard is a frog, or John moved to the garden.
invalid_hypothesis: It is highly unlikely that bernhard is a frog, or John moved to the garden.
hypothesis_assertion: Bernhard is a frog, or John moved to the garden.