context: It is probable that Bernhard is a lion. We believe that Lily is a rhino. Chances are slight that Daniel got the football. It is impossible that if either Daniel got the football, or Lily is a rhino, then John moved to the garden. There is a very good chance that if Lily is a rhino, or Daniel got the football, then Greg is green. There is little chance that if either Bernhard is a lion, or Lily is a rhino, then Sandra took the milk.
hypothesis: It is highly unlikely that sandra took the milk, or John moved to the garden.
valid_hypothesis: It is highly unlikely that sandra took the milk, or John moved to the garden.
invalid_hypothesis: There is a better than even chance that sandra took the milk, or John moved to the garden.
hypothesis_assertion: Sandra took the milk, or John moved to the garden.