context: We believe that Bernhard is a rhino. It is probably not the case that John took the football. It is likely that Mary moved to the garden.
hypothesis: It is certain that bernhard is a rhino, and Mary moved to the garden.
valid_hypothesis: Chances are about even that bernhard is a rhino, and Mary moved to the garden.
invalid_hypothesis: It is certain that bernhard is a rhino, and Mary moved to the garden.
hypothesis_assertion: Bernhard is a rhino, and Mary moved to the garden.