context: It is impossible that Brian is a swan. It is impossible that Julius is a lion. There is a better than even chance that Sandra left the apple.
hypothesis: It is highly likely that julius is a lion, or Brian is a swan.
valid_hypothesis: It is impossible that julius is a lion, or Brian is a swan.
invalid_hypothesis: It is highly likely that julius is a lion, or Brian is a swan.
hypothesis_assertion: Julius is a lion, or Brian is a swan.