context: It is certain that Brian is yellow. It is likely that Julius is white. It is probable that Bernhard is a swan. It is probable that if Brian is yellow, or Bernhard is a swan, then Daniel left the football. It is likely that if either Bernhard is a swan, or Brian is yellow, then John moved to the office. It is probably not the case that if Bernhard is a swan, or Julius is white, then Sandra got the apple.
hypothesis: There is a better than even chance that either Julius is white, or John moved to the office.
valid_hypothesis: There is a better than even chance that either Julius is white, or John moved to the office.
invalid_hypothesis: It is highly unlikely that either Julius is white, or John moved to the office.
hypothesis_assertion: Either Julius is white, or John moved to the office.