context: It is highly likely that Greg is a lion. It is improbable that John moved to the office. Chances are slight that Julius is gray.
hypothesis: It is unlikely that either John moved to the office, or Greg is a lion.
valid_hypothesis: There is a very good chance that either John moved to the office, or Greg is a lion.
invalid_hypothesis: It is unlikely that either John moved to the office, or Greg is a lion.
hypothesis_assertion: Either John moved to the office, or Greg is a lion.