context: We believe that Sandra took the football. There is little chance that Bernhard is a rhino. Chances are slight that Brian is a frog. Chances are about even that if Brian is a frog, and Sandra took the football, then Greg is green. It is probably not the case that if Sandra took the football, or Bernhard is a rhino, then Lily is white. There is almost no chance that if Bernhard is a rhino, and Sandra took the football, then John went to the kitchen.
hypothesis: It is probably not the case that lily is white, or Bernhard is a rhino.
valid_hypothesis: It is probably not the case that lily is white, or Bernhard is a rhino.
invalid_hypothesis: It is certain that lily is white, or Bernhard is a rhino.
hypothesis_assertion: Lily is white, or Bernhard is a rhino.