In this task, you're given four sentences of a story written in natural language in which one part is missing. Your job is to predict the position and missing part of the story and return in the following format: position, missing part. The missing part is a sentence that completes the story, and the position is the number of the missing sentence in the new story.

Q: Sentence1: Ava needed to go shopping with her two-year old. Sentence2: But she couldn't find his shoes even after looking everywhere! Sentence3: She carried him into the store in order to select a new pair. Sentence4: Ava took good care of her son.

A: 3, She decided she had no choice but to buy him new shoes.
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Q: Sentence1: My favorite movie is the Wizard of Oz. Sentence2: I used to think it was real when I was young. Sentence3: The characters took me away into the Land of Oz. Sentence4: One day, I decided to buy the movie.

A: 3, Whenever I watched it, I felt immersed in the movie.
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Q: Sentence1: Seven-year-old Ben went to play at his friend Mike's house. Sentence2: Mike greeted Ben, and they went to play in Mike's room. Sentence3: First, they played with Mike's quadcopters for a long time. Sentence4: They had a good time together.

A:
4, Then, they played with some trucks.
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