context: It is impossible that Daniel left the football. Chances are about even that Bernhard is yellow. It is likely that Mary moved to the garden. It is probably not the case that if Bernhard is yellow, and Mary moved to the garden, then Julius is a swan. It is probable that if Daniel left the football, and Bernhard is yellow, then Brian is green. It is highly unlikely that if Bernhard is yellow, and Daniel left the football, then John went to the garden.
hypothesis: It is impossible that mary moved to the garden, and Brian is green.
valid_hypothesis: It is impossible that mary moved to the garden, and Brian is green.
invalid_hypothesis: It is highly likely that mary moved to the garden, and Brian is green.
hypothesis_assertion: Mary moved to the garden, and Brian is green.