context: It is certain that Greg is a rhino. There is a better than even chance that John dropped the milk. It is probably not the case that Mary moved to the garden.
hypothesis: There is almost no chance that john dropped the milk, and Greg is a rhino.
valid_hypothesis: There is a better than even chance that john dropped the milk, and Greg is a rhino.
invalid_hypothesis: There is almost no chance that john dropped the milk, and Greg is a rhino.
hypothesis_assertion: John dropped the milk, and Greg is a rhino.