context: It is impossible that Lily is a frog. There is a better than even chance that Yann is tired. It is improbable that Greg is gray. There is a better than even chance that if Yann is tired, and Greg is gray, then Emily is a cat. Chances are about even that if Greg is gray, and Lily is a frog, then John went to the hallway. There is a very good chance that if Yann is tired, and Greg is gray, then Bernhard is a lion.
hypothesis: It is probable that emily is a cat, or John went to the hallway.
valid_hypothesis: It is highly unlikely that emily is a cat, or John went to the hallway.
invalid_hypothesis: It is probable that emily is a cat, or John went to the hallway.
hypothesis_assertion: Emily is a cat, or John went to the hallway.