context: We believe that Sandra took the football. There is a better than even chance that Bernhard is a lion. It is impossible that Greg is a swan. It is highly unlikely that if Greg is a swan, or Bernhard is a lion, then Jeff discarded the apple. There is a very good chance that if Sandra took the football, and Bernhard is a lion, then Brian is green. We doubt that if Bernhard is a lion, or Greg is a swan, then Bill went to the garden.
hypothesis: It is highly likely that sandra took the football, and Jeff discarded the apple.
valid_hypothesis: There is almost no chance that sandra took the football, and Jeff discarded the apple.
invalid_hypothesis: It is highly likely that sandra took the football, and Jeff discarded the apple.
hypothesis_assertion: Sandra took the football, and Jeff discarded the apple.