context: It is improbable that Julius is a rhino. It is probably not the case that John took the football. There is a better than even chance that Bernhard is a frog. There is almost no chance that if John took the football, and Julius is a rhino, then Daniel dropped the milk. Chances are about even that if Bernhard is a frog, or John took the football, then Brian is white. It is almost certain that if Julius is a rhino, or Bernhard is a frog, then Greg is yellow.
hypothesis: There is almost no chance that bernhard is a frog, and Greg is yellow.
valid_hypothesis: There is a better than even chance that bernhard is a frog, and Greg is yellow.
invalid_hypothesis: There is almost no chance that bernhard is a frog, and Greg is yellow.
hypothesis_assertion: Bernhard is a frog, and Greg is yellow.