context: It is highly likely that Lily is a frog. Chances are about even that Mary left the football. There is a better than even chance that Bernhard is a rhino.
hypothesis: It is certain that mary left the football, and Bernhard is a rhino.
valid_hypothesis: It is probably not the case that mary left the football, and Bernhard is a rhino.
invalid_hypothesis: It is certain that mary left the football, and Bernhard is a rhino.
hypothesis_assertion: Mary left the football, and Bernhard is a rhino.