context: There is a better than even chance that Brian is a rhino. We believe that Lily is a lion. It is unlikely that Sandra got the apple. There is a very good chance that if Lily is a lion, or Sandra got the apple, then Jessica is a wolf. It is probably not the case that if Lily is a lion, or Sandra got the apple, then John went to the kitchen. We believe that if either Brian is a rhino, or Lily is a lion, then Mary left the milk.
hypothesis: There is a better than even chance that brian is a rhino, and Mary left the milk.
valid_hypothesis: It is improbable that brian is a rhino, and Mary left the milk.
invalid_hypothesis: There is a better than even chance that brian is a rhino, and Mary left the milk.
hypothesis_assertion: Brian is a rhino, and Mary left the milk.