context: There is a better than even chance that Lily is gray. It is improbable that Mary went to the park. It is almost certain that John picked up the milk. We doubt that if Mary went to the park, and John picked up the milk, then Julius is a frog. It is impossible that if Mary went to the park, or John picked up the milk, then Daniel got the apple. It is almost certain that if Mary went to the park, or Lily is gray, then Bernhard is a swan.
hypothesis: It is impossible that daniel got the apple, and Bernhard is a swan.
valid_hypothesis: It is impossible that daniel got the apple, and Bernhard is a swan.
invalid_hypothesis: It is almost certain that daniel got the apple, and Bernhard is a swan.
hypothesis_assertion: Daniel got the apple, and Bernhard is a swan.