context: There is almost no chance that Greg is a swan. It is unlikely that Emily is a mouse. There is a very good chance that Julius is a frog.
hypothesis: We doubt that either Emily is a mouse, or Greg is a swan.
valid_hypothesis: We doubt that either Emily is a mouse, or Greg is a swan.
invalid_hypothesis: It is certain that either Emily is a mouse, or Greg is a swan.
hypothesis_assertion: Either Emily is a mouse, or Greg is a swan.