context: It is certain that Mary left the football. It is likely that Brian is a rhino. Chances are slight that John went to the garden.
hypothesis: It is unlikely that john went to the garden, or Mary left the football.
valid_hypothesis: It is certain that john went to the garden, or Mary left the football.
invalid_hypothesis: It is unlikely that john went to the garden, or Mary left the football.
hypothesis_assertion: John went to the garden, or Mary left the football.