context: Chances are slight that Bernhard is a lion. There is a very good chance that Bill went to the cinema. Chances are slight that Lily is white.
hypothesis: There is a very good chance that bill went to the cinema, or Lily is white.
valid_hypothesis: There is a very good chance that bill went to the cinema, or Lily is white.
invalid_hypothesis: It is improbable that bill went to the cinema, or Lily is white.
hypothesis_assertion: Bill went to the cinema, or Lily is white.