context: It is unlikely that Daniel took the football. There is a very good chance that Greg is a swan. It is probably not the case that Lily is a lion. It is highly unlikely that if Lily is a lion, and Greg is a swan, then Winona is a sheep. There is almost no chance that if Greg is a swan, and Daniel took the football, then Bernhard is a frog. It is certain that if either Lily is a lion, or Greg is a swan, then John moved to the garden.
hypothesis: There is a better than even chance that either John moved to the garden, or Bernhard is a frog.
valid_hypothesis: There is a better than even chance that either John moved to the garden, or Bernhard is a frog.
invalid_hypothesis: There is little chance that either John moved to the garden, or Bernhard is a frog.
hypothesis_assertion: Either John moved to the garden, or Bernhard is a frog.