context: There is a very good chance that Brian is yellow. There is little chance that Bernhard is a swan. There is little chance that Greg is gray. It is probable that if Brian is yellow, or Bernhard is a swan, then Mary got the football. It is unlikely that if Bernhard is a swan, or Greg is gray, then Lily is a frog. It is certain that if Brian is yellow, and Greg is gray, then John took the apple.
hypothesis: It is unlikely that brian is yellow, or Bernhard is a swan.
valid_hypothesis: There is a very good chance that brian is yellow, or Bernhard is a swan.
invalid_hypothesis: It is unlikely that brian is yellow, or Bernhard is a swan.
hypothesis_assertion: Brian is yellow, or Bernhard is a swan.