premise: Mary had always wanted to have a pet bird.
initial: When Mary was young, her parents told her a bird was too much trouble.
counterfactual: However, she found out that she was allergic to feathers.
original_ending: Now that she had her own apartment, she decided to buy a parrot. It felt great to have a parrot and to not be alone all the time. The parrot turned out to be a great companion.
edited_ending: Now that she had her own apartment, she decided to buy a guinea pig.It felt great to have a guinea pig and to not be alone all the time.The guinea pig turned out to be a great companion.<SEP>Now that she had her own apartment, she decided to buy a parrotIt felt great to have a parrot and to not be alone all the timeMary felt that dealing with the allergies was worth it for the great companion<SEP>Now that she had her own apartment, she decided to buy a cat.It felt great to have a cat to chase birds away, and to not be alone all the time.The cat turned out to be a great companion.