context: It is likely that Brian is a rhino. There is little chance that John got the football. There is little chance that Mary went to the kitchen. There is a better than even chance that if either Brian is a rhino, or Mary went to the kitchen, then Yann is tired. It is likely that if Brian is a rhino, or John got the football, then Julius is yellow. We doubt that if either John got the football, or Brian is a rhino, then Bernhard is gray.
hypothesis: It is probably the case that either John got the football, or Brian is a rhino.
valid_hypothesis: It is probably the case that either John got the football, or Brian is a rhino.
invalid_hypothesis: It is improbable that either John got the football, or Brian is a rhino.
hypothesis_assertion: Either John got the football, or Brian is a rhino.