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: Jen was constantly coughing. Sentence2: But she wasn't sure why. Sentence3: Her mother noticed that there was lots of dust in her room. Sentence4: So Jen used a duster to clean as much of it as she could.

But the process of cleaning the dust made Jen's cough worse.