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.

Example Input: Sentence1: Yesterday, my mother in law called, and wanted to go out to some store. Sentence2: She picked me up at 4:30, and we headed out. Sentence3: We went to one store after the other looking for good deals. Sentence4: Absolutely none of the stores had anything good to buy.
Example Output: 5, We went home without buying anything.

Example Input: Sentence1: I drove to Chicago. Sentence2: I could not believe I was seeing a Beatle. Sentence3: I was 30 rows from the front of the stage. Sentence4: I cheered when the Beatle came under the spotlight.
Example Output: 1, I got my concert tickets.

Example Input: Sentence1: He consistently collected issues of his favorite stories. Sentence2: As he grew older his love for comics grew. Sentence3: He decided that he wanted to start his own comic book company. Sentence4: He named it Don's Comics.
Example Output:
1, Don loved comic books.