context: It is unlikely that Emily is a sheep. It is unlikely that Julius is green. There is a very good chance that Fred dropped the apple. It is certain that if Emily is a sheep, or Fred dropped the apple, then Greg is a lion. It is impossible that if Emily is a sheep, and Julius is green, then John went to the bedroom. There is a very good chance that if either Fred dropped the apple, or Emily is a sheep, then Bernhard is white.
hypothesis: We doubt that fred dropped the apple, or Greg is a lion.
valid_hypothesis: There is a very good chance that fred dropped the apple, or Greg is a lion.
invalid_hypothesis: We doubt that fred dropped the apple, or Greg is a lion.
hypothesis_assertion: Fred dropped the apple, or Greg is a lion.