context: There is almost no chance that Brian is a swan. There is little chance that Fred is in the park. It is almost certain that Julius is a lion.
hypothesis: It is almost certain that fred is in the park, and Julius is a lion.
valid_hypothesis: Chances are slight that fred is in the park, and Julius is a lion.
invalid_hypothesis: It is almost certain that fred is in the park, and Julius is a lion.
hypothesis_assertion: Fred is in the park, and Julius is a lion.