context: Chances are about even that Julius is a swan. It is certain that Lily is white. It is probably not the case that Julie is in the bedroom.
hypothesis: Chances are about even that either Julie is in the bedroom, or Julius is a swan.
valid_hypothesis: Chances are about even that either Julie is in the bedroom, or Julius is a swan.
invalid_hypothesis: It is almost certain that either Julie is in the bedroom, or Julius is a swan.
hypothesis_assertion: Either Julie is in the bedroom, or Julius is a swan.