context: It is likely that Brian is a frog. We believe that Bernhard is gray. We doubt that Julie is in the office. It is improbable that if Bernhard is gray, and Brian is a frog, then Mary put down the milk. It is unlikely that if either Brian is a frog, or Julie is in the office, then Greg is a frog. It is improbable that if Bernhard is gray, or Brian is a frog, then Lily is white.
hypothesis: We believe that lily is white, or Bernhard is gray.
valid_hypothesis: We believe that lily is white, or Bernhard is gray.
invalid_hypothesis: There is little chance that lily is white, or Bernhard is gray.
hypothesis_assertion: Lily is white, or Bernhard is gray.