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.

Sentence1: Mary needed to have teeth pulled. Sentence2: She wanted the dentist to put her to sleep. Sentence3: All he could do was numb the area with Novocaine. Sentence4: After seeing her expression, the dentist was able help Mary.
4, Mary stared at him in horror.

Sentence1: Gina decided to bake an apple pie for the first time. Sentence2: She was extremely careful to follow the recipe exactly. Sentence3: After putting the pie in the oven, she eagerly waited to try it. Sentence4: It turned out to be delicious!
5, She shared the recipe and the pie with all her friends.

Sentence1: Ava was mad that she had to wear a vest in the pool. Sentence2: She wanted to swim without a vest like her brother. Sentence3: Ava took lessons for 6 weeks and learned how to swim. Sentence4: She was happy that she didn't have to wear a vest anymore.
3, She asked her mother if she could take swimming lessons.