context: It is certain that Brian is a swan. There is almost no chance that Lily is a frog. We doubt that Bernhard is white. There is almost no chance that if Lily is a frog, and Bernhard is white, then Bill moved to the office. We doubt that if either Brian is a swan, or Bernhard is white, then Daniel took the football. It is certain that if Bernhard is white, and Lily is a frog, then Winona is a wolf.
hypothesis: It is impossible that bill moved to the office, or Winona is a wolf.
valid_hypothesis: It is impossible that bill moved to the office, or Winona is a wolf.
invalid_hypothesis: Chances are about even that bill moved to the office, or Winona is a wolf.
hypothesis_assertion: Bill moved to the office, or Winona is a wolf.