context: It is highly likely that Sandra got the football. It is impossible that Mary took the apple. There is a very good chance that Greg is a rhino. It is impossible that if Sandra got the football, and Greg is a rhino, then Lily is gray. It is improbable that if either Greg is a rhino, or Mary took the apple, then Bernhard is white. It is highly likely that if Greg is a rhino, or Mary took the apple, then Julie is in the kitchen.
hypothesis: It is likely that lily is gray, and Mary took the apple.
valid_hypothesis: It is impossible that lily is gray, and Mary took the apple.
invalid_hypothesis: It is likely that lily is gray, and Mary took the apple.
hypothesis_assertion: Lily is gray, and Mary took the apple.