context: We believe that Mary dropped the milk. Chances are about even that Julius is green. It is improbable that Greg is a rhino. There is a very good chance that if Mary dropped the milk, or Greg is a rhino, then John left the apple. There is little chance that if Greg is a rhino, or Julius is green, then Daniel got the football. There is little chance that if Mary dropped the milk, or Greg is a rhino, then Brian is yellow.
hypothesis: There is little chance that either Brian is yellow, or Daniel got the football.
valid_hypothesis: There is little chance that either Brian is yellow, or Daniel got the football.
invalid_hypothesis: There is a very good chance that either Brian is yellow, or Daniel got the football.
hypothesis_assertion: Either Brian is yellow, or Daniel got the football.