premise: Harry bought a puppy.
initial: Harry and the puppy loved each other.
counterfactual: Harry's puppy died at the age of 1.
original_ending: They grew old together. By the time the puppy was a dog, Harry knew it would die soon. Harry was very sad.
edited_ending: They could not grow old together.However, Harry had known it would die soon.Harry was very sad.<SEP>He wished they grew old together.The puppy never became a grown dog.Harry was very sad.<SEP>They had little time together.Harry didn't know it would die soon.Harry was very sad.