context: It is certain that John put down the milk. It is likely that Bernhard is a swan. We believe that Bill is in the cinema.
hypothesis: It is highly unlikely that bernhard is a swan, or John put down the milk.
valid_hypothesis: It is certain that bernhard is a swan, or John put down the milk.
invalid_hypothesis: It is highly unlikely that bernhard is a swan, or John put down the milk.
hypothesis_assertion: Bernhard is a swan, or John put down the milk.