context: It is improbable that Bernhard is a swan. It is unlikely that Julius is white. It is highly unlikely that Sandra dropped the milk. It is likely that if Bernhard is a swan, or Sandra dropped the milk, then Mary moved to the office. It is probable that if Sandra dropped the milk, and Julius is white, then Brian is gray. It is certain that if either Bernhard is a swan, or Sandra dropped the milk, then Lily is green.
hypothesis: There is a very good chance that either Lily is green, or Julius is white.
valid_hypothesis: It is probably not the case that either Lily is green, or Julius is white.
invalid_hypothesis: There is a very good chance that either Lily is green, or Julius is white.
hypothesis_assertion: Either Lily is green, or Julius is white.