context: We believe that Lily is a frog. Chances are about even that John left the apple. It is highly likely that Bernhard is gray. It is almost certain that if John left the apple, or Lily is a frog, then Bill got the milk there. We doubt that if Lily is a frog, and Bernhard is gray, then Daniel took the football. It is probably not the case that if Bernhard is gray, and John left the apple, then Mary went to the garden.
hypothesis: It is almost certain that lily is a frog, and Daniel took the football.
valid_hypothesis: There is little chance that lily is a frog, and Daniel took the football.
invalid_hypothesis: It is almost certain that lily is a frog, and Daniel took the football.
hypothesis_assertion: Lily is a frog, and Daniel took the football.