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: He felt lonely because he did not know anybody in the town. Sentence2: After work one day Bill decided to join some coworkers for drinks. Sentence3: He had a lot of fun hanging out with them. Sentence4: Bill made a lot of friends that day.
Example Output: 1, Bill had just moved to a big city for work.

Example Input: Sentence1: Sam bought a new television. Sentence2: It would not turn on. Sentence3: He pressed the on button several times. Sentence4: Finally Jeb came over to check it out.
Example Output: 5, Jeb plugged the television in and it turned on.

Example Input: Sentence1: Joan decided to treat herself to a fancy sushi dinner. Sentence2: But the food was bad and the waiter was even worse! Sentence3: She asked for the manager but he never bothered to come. Sentence4: Although it was unlike her, Joan got so mad she left without paying.
Example Output:
5, Joan felt bad about the dinner but glad she was assertive.