context: It is highly likely that Winona is a wolf. It is unlikely that Daniel left the football. It is probably not the case that Brian is a swan.
hypothesis: It is certain that daniel left the football, or Brian is a swan.
valid_hypothesis: Chances are about even that daniel left the football, or Brian is a swan.
invalid_hypothesis: It is certain that daniel left the football, or Brian is a swan.
hypothesis_assertion: Daniel left the football, or Brian is a swan.