context: It is probable that Bernhard is a swan. We doubt that Sandra got the football. It is certain that Gertrude is a cat. It is probably not the case that if either Sandra got the football, or Bernhard is a swan, then Brian is a rhino. It is probably the case that if Sandra got the football, and Bernhard is a swan, then Mary took the apple. There is little chance that if Sandra got the football, or Gertrude is a cat, then Lily is gray.
hypothesis: There is a better than even chance that lily is gray, and Bernhard is a swan.
valid_hypothesis: It is highly unlikely that lily is gray, and Bernhard is a swan.
invalid_hypothesis: There is a better than even chance that lily is gray, and Bernhard is a swan.
hypothesis_assertion: Lily is gray, and Bernhard is a swan.