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: Lester was infatuated with Christina. Sentence2: He was a photographer and she was a graphic designer. Sentence3: Lester spent all his free time with Christina. Sentence4: Lester asked her to marry him.
Example Output: 4, Finally, she said she loved him and wanted children with him.

Example Input: Sentence1: Linda went to buy some frozen yogurt. Sentence2: She loved vanilla, so that was what she got. Sentence3: She tasted it and it was horrible. Sentence4: Linda was very disappointed.
Example Output: 2, She saw some white yogurt and assumed it was vanilla.

Example Input: Sentence1: He wanted to go out and play! Sentence2: He was too weak to move. Sentence3: His mother gave him soup and medicine. Sentence4: Brad's mother was very caring.
Example Output:
1, Brad was sick with a cold!