context: It is unlikely that Greg is a swan. It is probably the case that John moved to the office. It is highly unlikely that Fred went to the bedroom.
hypothesis: It is highly unlikely that either John moved to the office, or Greg is a swan.
valid_hypothesis: There is a better than even chance that either John moved to the office, or Greg is a swan.
invalid_hypothesis: It is highly unlikely that either John moved to the office, or Greg is a swan.
hypothesis_assertion: Either John moved to the office, or Greg is a swan.