context: It is highly likely that Sandra took the football. We doubt that Greg is white. It is highly likely that Fred is in the bedroom. It is probably not the case that if Sandra took the football, and Greg is white, then Lily is a rhino. It is highly unlikely that if either Greg is white, or Sandra took the football, then Daniel dropped the milk. It is highly likely that if either Fred is in the bedroom, or Sandra took the football, then Julius is a lion.
hypothesis: There is almost no chance that either Julius is a lion, or Sandra took the football.
valid_hypothesis: It is highly likely that either Julius is a lion, or Sandra took the football.
invalid_hypothesis: There is almost no chance that either Julius is a lion, or Sandra took the football.
hypothesis_assertion: Either Julius is a lion, or Sandra took the football.