instruction:
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.
question:
Sentence1: I needed to take my dog for a walk. Sentence2: My neighborhood requires a leash. Sentence3: I looked through my house for the leash. Sentence4: I could not find it.
answer:
5, I decided to take my dog to the back yard.

question:
Sentence1: Jennifer dove from the starting block. Sentence2: She always felt that she held the rest of her team back. Sentence3: She even past a few and actually placed second in her event. Sentence4: Jennifer was proud of herself for swimming so well.
answer:
3, She pushed harder than she ever had to catch the other swimmers.

question:
Sentence1: Mary has worked at a car dealership for two Year's without selling. Sentence2: Her boss tells her that she needs to sell a car soon. Sentence3: Mary sells them a very big, expensive car. Sentence4: Mary's boss is happy with her sale.
answer:
3, One day a couple comes into the dealership and asks to see a car.