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: Quentin had never been on a boat in his life. Sentence2: When they were there, Quentin and his friend went sailing. Sentence3: It was an exhilarating experience. Sentence4: Quentin was glad that he went.

Ex Output:
2, One summer a friend invited Quentin to his lake house.

Ex Input:
Sentence1: After dropping her kids off at school, Tammy donated blood. Sentence2: Tammy then headed for the gym to her favorite aerobics class. Sentence3: Forty minutes into the intense workout Tammy passed out. Sentence4: Tammy learned a valuable lesson.

Ex Output:
2, She drank some juice to refuel before running a few errands.

Ex Input:
Sentence1: Burke doesn't have many friends. Sentence2: One day, a stranger tells him that he should smile more. Sentence3: Burke decides to try smiling. Sentence4: Burke soon reverts back to being grumpy.

Ex Output:
2, He always walks around with a scowl on his face.