context: It is highly unlikely that Julius is a lion. It is impossible that Bill put down the milk. There is a very good chance that Brian is yellow.
hypothesis: It is highly unlikely that brian is yellow, and Julius is a lion.
valid_hypothesis: It is highly unlikely that brian is yellow, and Julius is a lion.
invalid_hypothesis: We believe that brian is yellow, and Julius is a lion.
hypothesis_assertion: Brian is yellow, and Julius is a lion.