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: Ed put a dog door in so his dogs could go out by themselves. Sentence2: He had a fenced in yard so there was no chance they'd run off. Sentence3: One morning he sat down to have a bowl of cereal. Sentence4: He noticed a big fat racoon eating out of the dog bowl.

It had come through the dog door.