context: It is probably not the case that Julius is a lion. It is likely that Sandra grabbed the milk. There is a better than even chance that Bernhard is white. It is likely that if Bernhard is white, and Julius is a lion, then John discarded the apple. There is almost no chance that if either Sandra grabbed the milk, or Julius is a lion, then Mary moved to the office. Chances are slight that if Julius is a lion, or Bernhard is white, then Brian is yellow.
hypothesis: There is a very good chance that sandra grabbed the milk, or Julius is a lion.
valid_hypothesis: There is a very good chance that sandra grabbed the milk, or Julius is a lion.
invalid_hypothesis: We doubt that sandra grabbed the milk, or Julius is a lion.
hypothesis_assertion: Sandra grabbed the milk, or Julius is a lion.