context: It is impossible that Mary went to the kitchen. It is almost certain that Sandra took the football. We doubt that Julius is white. We believe that if either Julius is white, or Sandra took the football, then Bernhard is yellow. Chances are slight that if either Sandra took the football, or Mary went to the kitchen, then Greg is a lion. There is a very good chance that if Sandra took the football, or Mary went to the kitchen, then Brian is a rhino.
hypothesis: There is little chance that greg is a lion, or Brian is a rhino.
valid_hypothesis: There is a very good chance that greg is a lion, or Brian is a rhino.
invalid_hypothesis: There is little chance that greg is a lion, or Brian is a rhino.
hypothesis_assertion: Greg is a lion, or Brian is a rhino.