context: It is unlikely that Emily is a wolf. There is almost no chance that Greg is yellow. We believe that Sandra left the football. It is highly unlikely that if either Emily is a wolf, or Sandra left the football, then Bernhard is a lion. There is a very good chance that if Greg is yellow, and Emily is a wolf, then Brian is gray. It is impossible that if Greg is yellow, and Emily is a wolf, then John moved to the office.
hypothesis: There is almost no chance that sandra left the football, and Greg is yellow.
valid_hypothesis: There is almost no chance that sandra left the football, and Greg is yellow.
invalid_hypothesis: We believe that sandra left the football, and Greg is yellow.
hypothesis_assertion: Sandra left the football, and Greg is yellow.