context: It is highly likely that Sandra left the football. There is almost no chance that Bernhard is white. We doubt that Julius is a rhino. It is probable that if Julius is a rhino, and Sandra left the football, then Mary moved to the garden. It is highly unlikely that if Sandra left the football, and Bernhard is white, then Greg is a frog. It is impossible that if either Bernhard is white, or Sandra left the football, then Brian is a swan.
hypothesis: It is unlikely that sandra left the football, and Julius is a rhino.
valid_hypothesis: It is unlikely that sandra left the football, and Julius is a rhino.
invalid_hypothesis: It is probable that sandra left the football, and Julius is a rhino.
hypothesis_assertion: Sandra left the football, and Julius is a rhino.