context: It is probably the case that Lily is a frog. There is a better than even chance that Daniel took the football. We doubt that Sandra grabbed the milk. It is probably not the case that if either Daniel took the football, or Lily is a frog, then Winona is a mouse. It is certain that if Lily is a frog, and Sandra grabbed the milk, then Greg is a lion. There is a better than even chance that if Daniel took the football, or Sandra grabbed the milk, then Bill went to the office.
hypothesis: It is probably the case that daniel took the football, and Winona is a mouse.
valid_hypothesis: It is highly unlikely that daniel took the football, and Winona is a mouse.
invalid_hypothesis: It is probably the case that daniel took the football, and Winona is a mouse.
hypothesis_assertion: Daniel took the football, and Winona is a mouse.