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: Carl joined the military right after high school. Sentence2: He signed a short contract that put him on the front lines. Sentence3: His best friend was killed in front of him. Sentence4: Carl had to go to therapy for post-traumatic stress disorder.
Example Output: 4, Happiness became a foreign concept to Carl.

Example Input: Sentence1: Jeff was walking home to only see a tornado at a distance. Sentence2: Jeff knew he was in danger so he went to a nearby house. Sentence3: The homeowner let Jeff inside. Sentence4: They huddled in the bathroom as the tornado raged overhead.
Example Output: 3, He rang the doorbell and asked if he can stay until tornado dies off.

Example Input: Sentence1: When I was a kid, my siblings and I needed money. Sentence2: We came up with the idea for a lemonade stand. Sentence3: We decided to set up outside our house. Sentence4: We sold lemonade to a few dozen people.
Example Output:
5, We made a lot of money for our needs.