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: It was the last day of our vacation. Sentence2: We were eating lunch on the patio of the hotel. Sentence3: We laughed and smiled because it was a great vacation. Sentence4: We want to revisit someday.
Example Output: 4, Then we packed our bags and drove to the airport.

Example Input: Sentence1: But then she got an important phone call. Sentence2: While she was talking, the dog dragged mud all over the kitchen. Sentence3: The kids started to pester their mother, who was still on the phone. Sentence4: The mother felt quite frustrated.
Example Output: 1, Mother told her children it would be lunchtime in fifteen minutes.

Example Input: Sentence1: She loved peacefully rowing the canoe before anyone else was awake. Sentence2: This morning she was shocked to see a stork flying across the lake. Sentence3: As she took a picture, she lost her balance and fell into the water. Sentence4: Juanita climbed back into the boat.
Example Output:
1, Juanita woke up early for a canoe ride on the lake.