context: There is a better than even chance that Greg is a frog. It is improbable that Yann got the milk there. We doubt that Lily is green. It is almost certain that if Lily is green, or Greg is a frog, then Daniel took the football. It is highly likely that if Greg is a frog, or Lily is green, then Brian is a lion. It is unlikely that if Lily is green, and Yann got the milk there, then Winona is a cat.
hypothesis: It is highly unlikely that yann got the milk there, and Greg is a frog.
valid_hypothesis: It is highly unlikely that yann got the milk there, and Greg is a frog.
invalid_hypothesis: It is highly likely that yann got the milk there, and Greg is a frog.
hypothesis_assertion: Yann got the milk there, and Greg is a frog.