context: It is probably not the case that John got the football. We believe that Mary dropped the milk. It is likely that Bernhard is yellow. It is almost certain that if Bernhard is yellow, or John got the football, then Greg is green. Chances are slight that if Bernhard is yellow, and John got the football, then Antoine is hungry. Chances are about even that if Bernhard is yellow, and John got the football, then Winona is a mouse.
hypothesis: It is highly likely that greg is green, and John got the football.
valid_hypothesis: It is probably not the case that greg is green, and John got the football.
invalid_hypothesis: It is highly likely that greg is green, and John got the football.
hypothesis_assertion: Greg is green, and John got the football.