context: It is highly unlikely that Julius is yellow. We doubt that Brian is white. We believe that Winona is a wolf. It is probably the case that if Julius is yellow, and Brian is white, then John went to the kitchen. It is likely that if Brian is white, or Julius is yellow, then Sandra left the football. It is likely that if either Julius is yellow, or Winona is a wolf, then Mary picked up the milk.
hypothesis: It is improbable that sandra left the football, and Mary picked up the milk.
valid_hypothesis: It is improbable that sandra left the football, and Mary picked up the milk.
invalid_hypothesis: It is probable that sandra left the football, and Mary picked up the milk.
hypothesis_assertion: Sandra left the football, and Mary picked up the milk.