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: John had just graduated high school, and was about to go to college. Sentence2: His mom helped him pack all his stuff, and he drove away. Sentence3: His new roommate was there, and they hit it off. Sentence4: They walked around campus and got invited to a party.
Example Output: 3, When he got there, he went to check out his dorm.

Example Input: Sentence1: Robert and Sharon met at band camp when they were in high school. Sentence2: By the time they graduated they had plans to marry. Sentence3: Now they are expecting their first great grandchild. Sentence4: Sharon can't believe that so much time passed so fast.
Example Output: 5, But she is as happy today as she was the day they met.

Example Input: Sentence1: Maggie had her first piano recital tonight. Sentence2: She was very nervous. Sentence3: When she got on stage she was shaking. Sentence4: Thankfully she ended up playing perfectly.
Example Output:
5, Maggie was encouraged to do more.