context: It is probably not the case that Julius is white. It is almost certain that John went to the hallway. It is improbable that Brian is a swan.
hypothesis: It is highly likely that either John went to the hallway, or Brian is a swan.
valid_hypothesis: It is highly likely that either John went to the hallway, or Brian is a swan.
invalid_hypothesis: We doubt that either John went to the hallway, or Brian is a swan.
hypothesis_assertion: Either John went to the hallway, or Brian is a swan.