context: It is highly unlikely that Julius is a lion. It is impossible that Greg is a lion. It is almost certain that Bill went to the hallway. We believe that if Julius is a lion, or Bill went to the hallway, then John put down the milk. We doubt that if Bill went to the hallway, or Greg is a lion, then Lily is a swan. It is almost certain that if Julius is a lion, and Bill went to the hallway, then Bernhard is a rhino.
hypothesis: It is almost certain that greg is a lion, and Bill went to the hallway.
valid_hypothesis: It is impossible that greg is a lion, and Bill went to the hallway.
invalid_hypothesis: It is almost certain that greg is a lion, and Bill went to the hallway.
hypothesis_assertion: Greg is a lion, and Bill went to the hallway.