context: It is probably not the case that Mary left the football. Chances are slight that John went to the bedroom. Chances are about even that Lily is yellow.
hypothesis: It is almost certain that lily is yellow, and Mary left the football.
valid_hypothesis: Chances are slight that lily is yellow, and Mary left the football.
invalid_hypothesis: It is almost certain that lily is yellow, and Mary left the football.
hypothesis_assertion: Lily is yellow, and Mary left the football.