context: It is impossible that Greg is a swan. There is little chance that Sandra got the apple. It is almost certain that Julius is a frog.
hypothesis: We doubt that either Julius is a frog, or Greg is a swan.
valid_hypothesis: It is almost certain that either Julius is a frog, or Greg is a swan.
invalid_hypothesis: We doubt that either Julius is a frog, or Greg is a swan.
hypothesis_assertion: Either Julius is a frog, or Greg is a swan.