context: Chances are about even that Lily is a lion. There is almost no chance that Mary went to the kitchen. Chances are about even that Bernhard is a swan.
hypothesis: It is probably not the case that bernhard is a swan, and Lily is a lion.
valid_hypothesis: It is probably not the case that bernhard is a swan, and Lily is a lion.
invalid_hypothesis: There is a very good chance that bernhard is a swan, and Lily is a lion.
hypothesis_assertion: Bernhard is a swan, and Lily is a lion.