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: Nita saw a dog wandering around outside. Sentence2: She went outside to investigate. Sentence3: She saw that the dog had a collar and a tag. Sentence4: Nita called the number on the tag.

Soon, the dog's happy owner came to retrieve him.