Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: I've always wanted a dog, but my mom thinks I'm irresponsible. Sentence2: I told her I'd feed it, walk it, play with it, and everything else. Sentence3: Gradually she gave in, and she told me I could have one. Sentence4: But she also said I'd have to wait until my birthday.

On my birthday, I got a golden retriever puppy!