context: Chances are slight that Brian is a swan. It is almost certain that Mary went to the office. It is probably not the case that Jessica is a mouse.
hypothesis: It is probably not the case that either Jessica is a mouse, or Brian is a swan.
valid_hypothesis: It is probably not the case that either Jessica is a mouse, or Brian is a swan.
invalid_hypothesis: It is almost certain that either Jessica is a mouse, or Brian is a swan.
hypothesis_assertion: Either Jessica is a mouse, or Brian is a swan.