context: It is highly unlikely that Greg is white. It is almost certain that Bernhard is a rhino. Chances are slight that Julius is yellow. It is improbable that if Greg is white, or Julius is yellow, then Daniel dropped the apple. There is a very good chance that if either Greg is white, or Julius is yellow, then Sandra grabbed the milk. There is a very good chance that if Julius is yellow, or Bernhard is a rhino, then Winona is a wolf.
hypothesis: It is improbable that sandra grabbed the milk, or Greg is white.
valid_hypothesis: It is improbable that sandra grabbed the milk, or Greg is white.
invalid_hypothesis: It is certain that sandra grabbed the milk, or Greg is white.
hypothesis_assertion: Sandra grabbed the milk, or Greg is white.