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: Tom was wrapping Christmas presents. Sentence2: But he lost track of who they were for. Sentence3: So he put wrong name tags on the presents. Sentence4: His son was bewildered when he unwrapped a dollhouse.
Example Output: 4, On Christmas, Tom handed his son a present.

Example Input: Sentence1: There was none in the house. Sentence2: However, there was a bag of oranges. Sentence3: He halved a few of them and got out the juicer. Sentence4: Ben made freshly squeezed orange juice from the oranges.
Example Output: 1, Ben wanted a glass of orange juice.

Example Input: Sentence1: Joe felt confident going into his boxing match. Sentence2: He dominated the first four rounds. Sentence3: He got hit with a left hook that cut his eye in the fifth. Sentence4: The last seven rounds were a back and forth affair.
Example Output:
5, Joe eventually won the fight.