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: My cat loves playing strings. Sentence2: One day, she saw a string hanging from one of my curtains. Sentence3: She pounced on it! Sentence4: Unfortunately, she completely tore them.

I had to buy a new set of curtains.