context: We believe that Mary moved to the garden. We doubt that Lily is a swan. There is a very good chance that Daniel left the football.
hypothesis: There is little chance that daniel left the football, and Mary moved to the garden.
valid_hypothesis: There is a better than even chance that daniel left the football, and Mary moved to the garden.
invalid_hypothesis: There is little chance that daniel left the football, and Mary moved to the garden.
hypothesis_assertion: Daniel left the football, and Mary moved to the garden.