context: There is little chance that Mary dropped the apple. It is likely that Greg is a swan. We believe that Brian is a frog.
hypothesis: It is highly unlikely that mary dropped the apple, or Brian is a frog.
valid_hypothesis: We believe that mary dropped the apple, or Brian is a frog.
invalid_hypothesis: It is highly unlikely that mary dropped the apple, or Brian is a frog.
hypothesis_assertion: Mary dropped the apple, or Brian is a frog.