context: It is highly unlikely that Sandra left the football. It is unlikely that Mary dropped the milk. It is likely that Bernhard is a swan.
hypothesis: It is probably not the case that either Sandra left the football, or Mary dropped the milk.
valid_hypothesis: It is probably not the case that either Sandra left the football, or Mary dropped the milk.
invalid_hypothesis: It is almost certain that either Sandra left the football, or Mary dropped the milk.
hypothesis_assertion: Either Sandra left the football, or Mary dropped the milk.