context: There is little chance that Bernhard is a swan. It is certain that Lily is gray. There is almost no chance that Sandra dropped the milk.
hypothesis: It is impossible that bernhard is a swan, and Sandra dropped the milk.
valid_hypothesis: It is impossible that bernhard is a swan, and Sandra dropped the milk.
invalid_hypothesis: There is a very good chance that bernhard is a swan, and Sandra dropped the milk.
hypothesis_assertion: Bernhard is a swan, and Sandra dropped the milk.