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: I've been on an art kick lately. Sentence2: I received a drawing instruction book for Christmas. Sentence3: The book has a shopping list of necessary drawing supplies. Sentence4: I went to the store the other day and bought what I needed.
Example Output: 5, I went home and practiced drawing.

Example Input: Sentence1: Glen was in the mood for a walk. Sentence2: He put on his jacket and went outside. Sentence3: While walking on the sidewalk, he tripped and busted his knee open. Sentence4: Glen swore he'd never walk again.
Example Output: 4, Glen stood back up and limped back to his house.

Example Input: Sentence1: I use Mister Spice no sodium sauce. Sentence2: I am on a low sodium diet. Sentence3: I tried to buy some bottles online yesterday. Sentence4: The computer kept rejecting my order, even though the card was active.
Example Output:
5, Finally the sale went through.