context: It is almost certain that Lily is white. It is certain that Mary left the football. Chances are about even that Greg is gray.
hypothesis: It is highly unlikely that either Lily is white, or Mary left the football.
valid_hypothesis: It is highly unlikely that either Lily is white, or Mary left the football.
invalid_hypothesis: It is almost certain that either Lily is white, or Mary left the football.
hypothesis_assertion: Either Lily is white, or Mary left the football.