context: There is a very good chance that Gertrude is a sheep. There is almost no chance that Lily is a swan. Chances are about even that Bernhard is a swan.
hypothesis: There is almost no chance that gertrude is a sheep, and Lily is a swan.
valid_hypothesis: There is almost no chance that gertrude is a sheep, and Lily is a swan.
invalid_hypothesis: It is probable that gertrude is a sheep, and Lily is a swan.
hypothesis_assertion: Gertrude is a sheep, and Lily is a swan.