context: It is probable that Brian is white. It is probably not the case that Sandra took the apple. There is a very good chance that Daniel left the football. We doubt that if either Daniel left the football, or Brian is white, then John went to the office. It is probably not the case that if Daniel left the football, and Sandra took the apple, then Bernhard is a lion. It is impossible that if Brian is white, and Sandra took the apple, then Julius is a rhino.
hypothesis: It is probable that either Bernhard is a lion, or Julius is a rhino.
valid_hypothesis: It is highly unlikely that either Bernhard is a lion, or Julius is a rhino.
invalid_hypothesis: It is probable that either Bernhard is a lion, or Julius is a rhino.
hypothesis_assertion: Either Bernhard is a lion, or Julius is a rhino.