context: It is almost certain that Lily is a lion. There is a better than even chance that Brian is gray. We doubt that Julius is a swan. It is probable that if Julius is a swan, and Lily is a lion, then Mary went to the office. It is highly unlikely that if Julius is a swan, and Lily is a lion, then John left the football. We doubt that if Lily is a lion, or Brian is gray, then Bill is in the school.
hypothesis: It is almost certain that lily is a lion, or Julius is a swan.
valid_hypothesis: It is almost certain that lily is a lion, or Julius is a swan.
invalid_hypothesis: It is highly unlikely that lily is a lion, or Julius is a swan.
hypothesis_assertion: Lily is a lion, or Julius is a swan.