context: It is improbable that Jeff dropped the apple. It is certain that Lily is a frog. It is highly likely that Brian is gray. It is likely that if Lily is a frog, and Jeff dropped the apple, then Bill moved to the office. It is improbable that if Jeff dropped the apple, and Lily is a frog, then Yann is thirsty. Chances are slight that if Jeff dropped the apple, or Brian is gray, then Mary took the milk.
hypothesis: It is highly likely that lily is a frog, and Brian is gray.
valid_hypothesis: It is highly likely that lily is a frog, and Brian is gray.
invalid_hypothesis: It is probably not the case that lily is a frog, and Brian is gray.
hypothesis_assertion: Lily is a frog, and Brian is gray.