context: We believe that Mary got the football. There is little chance that Lily is a swan. It is unlikely that Bernhard is gray.
hypothesis: We believe that either Bernhard is gray, or Lily is a swan.
valid_hypothesis: It is probably not the case that either Bernhard is gray, or Lily is a swan.
invalid_hypothesis: We believe that either Bernhard is gray, or Lily is a swan.
hypothesis_assertion: Either Bernhard is gray, or Lily is a swan.