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: Rover liked playing fetch with his owner. Sentence2: One day his owner threw the ball too hard. Sentence3: Rover weaved through traffic with amazing skill. Sentence4: He fetched the ball and brought it back to his owner.
[A]: 3, It bounced across the street.

[Q]: Sentence1: When I was young I loved hide and sneak. Sentence2: I would play it even when others didn't know. Sentence3: I did this all the time in elementary school. Sentence4: When I got older, I had to stop jumping out at people.
[A]: 3, I would just hide and jump out at people.

[Q]: Sentence1: Bill's father told him to keep practicing his piano scales. Sentence2: He was an expert pianist, and wanted the same for his son. Sentence3: He bitterly sat at the piano, playing his scales over and over. Sentence4: As Bill got older, he realized all of that practice help him.
[A]:
3, Bill was too young to understand the value of practice.