context: It is highly unlikely that Greg is a lion. Chances are about even that Brian is white. It is unlikely that John moved to the garden. It is highly likely that if Brian is white, and Greg is a lion, then Lily is green. There is a very good chance that if John moved to the garden, and Greg is a lion, then Bernhard is gray. It is highly unlikely that if John moved to the garden, and Brian is white, then Winona is a cat.
hypothesis: It is highly likely that john moved to the garden, or Winona is a cat.
valid_hypothesis: It is unlikely that john moved to the garden, or Winona is a cat.
invalid_hypothesis: It is highly likely that john moved to the garden, or Winona is a cat.
hypothesis_assertion: John moved to the garden, or Winona is a cat.