context: It is impossible that Brian is a swan. It is probably not the case that Mary got the apple. Chances are about even that Lily is gray.
hypothesis: Chances are about even that either Brian is a swan, or Lily is gray.
valid_hypothesis: Chances are about even that either Brian is a swan, or Lily is gray.
invalid_hypothesis: It is impossible that either Brian is a swan, or Lily is gray.
hypothesis_assertion: Either Brian is a swan, or Lily is gray.