context: It is impossible that Sandra left the football. There is a better than even chance that Mary moved to the garden. It is likely that Lily is a swan.
hypothesis: It is certain that sandra left the football, and Lily is a swan.
valid_hypothesis: It is impossible that sandra left the football, and Lily is a swan.
invalid_hypothesis: It is certain that sandra left the football, and Lily is a swan.
hypothesis_assertion: Sandra left the football, and Lily is a swan.