context: It is highly unlikely that Greg is a frog. It is probably not the case that Sandra left the milk. It is impossible that Brian is a frog. It is probable that if either Sandra left the milk, or Brian is a frog, then Jessica is a cat. It is unlikely that if Brian is a frog, or Sandra left the milk, then Lily is green. It is probable that if Greg is a frog, and Brian is a frog, then John went to the kitchen.
hypothesis: It is highly unlikely that lily is green, and Sandra left the milk.
valid_hypothesis: It is highly unlikely that lily is green, and Sandra left the milk.
invalid_hypothesis: There is a very good chance that lily is green, and Sandra left the milk.
hypothesis_assertion: Lily is green, and Sandra left the milk.