context: It is certain that Brian is a swan. It is unlikely that Greg is a rhino. There is a very good chance that Emily is a mouse. It is almost certain that if Emily is a mouse, and Greg is a rhino, then Jessica is a mouse. There is a very good chance that if Emily is a mouse, or Brian is a swan, then Mary went to the garden. It is highly likely that if Greg is a rhino, or Emily is a mouse, then Bernhard is a frog.
hypothesis: It is impossible that either Jessica is a mouse, or Emily is a mouse.
valid_hypothesis: There is a better than even chance that either Jessica is a mouse, or Emily is a mouse.
invalid_hypothesis: It is impossible that either Jessica is a mouse, or Emily is a mouse.
hypothesis_assertion: Either Jessica is a mouse, or Emily is a mouse.