context: Chances are about even that Greg is yellow. It is likely that Mary left the football. It is almost certain that John moved to the garden.
hypothesis: It is certain that either Mary left the football, or Greg is yellow.
valid_hypothesis: Chances are about even that either Mary left the football, or Greg is yellow.
invalid_hypothesis: It is certain that either Mary left the football, or Greg is yellow.
hypothesis_assertion: Either Mary left the football, or Greg is yellow.