context: It is highly unlikely that Lily is green. It is probably not the case that Brian is white. It is highly likely that Julius is a swan. There is a very good chance that if Lily is green, and Julius is a swan, then Bill moved to the office. It is impossible that if Lily is green, or Brian is white, then Greg is gray. There is a very good chance that if either Julius is a swan, or Lily is green, then Daniel left the milk.
hypothesis: It is probable that either Brian is white, or Julius is a swan.
valid_hypothesis: It is probable that either Brian is white, or Julius is a swan.
invalid_hypothesis: It is impossible that either Brian is white, or Julius is a swan.
hypothesis_assertion: Either Brian is white, or Julius is a swan.