context: We believe that Emily is a sheep. It is highly likely that Brian is a lion. There is little chance that Greg is yellow. It is probable that if either Brian is a lion, or Emily is a sheep, then John dropped the apple. There is a better than even chance that if either Emily is a sheep, or Brian is a lion, then Daniel took the football. It is probable that if Brian is a lion, and Greg is yellow, then Bernhard is a swan.
hypothesis: There is a very good chance that either Daniel took the football, or Brian is a lion.
valid_hypothesis: There is a very good chance that either Daniel took the football, or Brian is a lion.
invalid_hypothesis: It is impossible that either Daniel took the football, or Brian is a lion.
hypothesis_assertion: Either Daniel took the football, or Brian is a lion.