context: We doubt that Fred moved to the office. It is probable that Bernhard is a swan. There is a very good chance that Julius is gray.
hypothesis: There is a very good chance that julius is gray, or Fred moved to the office.
valid_hypothesis: There is a very good chance that julius is gray, or Fred moved to the office.
invalid_hypothesis: Chances are slight that julius is gray, or Fred moved to the office.
hypothesis_assertion: Julius is gray, or Fred moved to the office.