context: It is likely that Lily is a rhino. Chances are about even that Julie is in the bedroom. It is impossible that Brian is a swan. It is probably not the case that if Julie is in the bedroom, and Lily is a rhino, then Winona is a wolf. It is unlikely that if either Lily is a rhino, or Julie is in the bedroom, then John went to the hallway. It is almost certain that if Julie is in the bedroom, and Brian is a swan, then Mary moved to the garden.
hypothesis: It is likely that either Lily is a rhino, or Mary moved to the garden.
valid_hypothesis: It is likely that either Lily is a rhino, or Mary moved to the garden.
invalid_hypothesis: Chances are slight that either Lily is a rhino, or Mary moved to the garden.
hypothesis_assertion: Either Lily is a rhino, or Mary moved to the garden.