context: It is certain that Brian is a lion. There is a better than even chance that Lily is a rhino. There is a very good chance that Yann is thirsty. It is probably the case that if either Yann is thirsty, or Brian is a lion, then John went to the hallway. It is highly unlikely that if Brian is a lion, and Yann is thirsty, then Winona is a mouse. It is improbable that if Lily is a rhino, and Brian is a lion, then Greg is green.
hypothesis: There is a better than even chance that lily is a rhino, and Brian is a lion.
valid_hypothesis: There is a better than even chance that lily is a rhino, and Brian is a lion.
invalid_hypothesis: Chances are slight that lily is a rhino, and Brian is a lion.
hypothesis_assertion: Lily is a rhino, and Brian is a lion.