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: Ruth peered through the curtains into the mist outside. Sentence2: A vaguely human shape fluttered past. Sentence3: Suddenly, there was a knock on the door! Sentence4: Terrified, Ruth went and opened it.

The mailman handed her a letter and commented on the weather.