context: It is highly likely that Winona is a wolf. It is certain that Bernhard is a lion. It is improbable that Daniel took the football. Chances are slight that if either Daniel took the football, or Winona is a wolf, then Mary picked up the milk. It is probably the case that if Bernhard is a lion, and Winona is a wolf, then Greg is a frog. Chances are about even that if Winona is a wolf, or Bernhard is a lion, then John went to the bedroom.
hypothesis: We doubt that either Daniel took the football, or Bernhard is a lion.
valid_hypothesis: It is highly likely that either Daniel took the football, or Bernhard is a lion.
invalid_hypothesis: We doubt that either Daniel took the football, or Bernhard is a lion.
hypothesis_assertion: Either Daniel took the football, or Bernhard is a lion.