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.

Ex Input:
Sentence1: Sean wanted to go out for a picnic. Sentence2: He packed himself a lunch in a basket. Sentence3: Then, he rode his bike off to a field. Sentence4: In the field, he ate his picnic.

Ex Output:
5, Sean loved the outdoors.

Ex Input:
Sentence1: She has a test next week about Photosynthesis. Sentence2: The information is complex and in depth. Sentence3: She wrote a song about it to memorize the material more easily. Sentence4: Her song helped her and she then did well.

Ex Output:
1, Amy is enrolled in an advanced Plant Biology course.

Ex Input:
Sentence1: I wanted to learn how chocolate chips are made. Sentence2: I went to the internet and did a search on the subject. Sentence3: I scanned through all the results, and finally found what I wanted. Sentence4: I read the whole article.

Ex Output:
5, I made the cookies.