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: Kelly and her friends decided to have a baking party. Sentence2: The girls decided to bake some cookies. Sentence3: After they were done they wrapped them in bags. Sentence4: They handed them around to all the neighbors.
Example Output: 3, They baked chocolate and oatmeal cookies.

Example Input: Sentence1: Alice was getting married in a few weeks. Sentence2: One night, her mother called and she forgot to call her back. Sentence3: She threatened not to come to the wedding. Sentence4: Alice called her mother and apologized profusely.
Example Output: 3, Her mother left an angry message on her phone.

Example Input: Sentence1: Bryan was shopping for fruit for his family. Sentence2: He looked through the whole aisle but could not decide on a fruit. Sentence3: His wife hated grapes, his daughter hated apples. Sentence4: Bryan decided to buy bananas.
Example Output:
4, Even his son was a fussy fruit eater!