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.

Ex Input:
Sentence1: I've been on an art kick lately. Sentence2: The book has a shopping list of necessary drawing supplies. Sentence3: I went to the store the other day and bought what I needed. Sentence4: I went home and practiced drawing.

Ex Output:
2, I received a drawing instruction book for Christmas.

Ex Input:
Sentence1: The family prepared the food and packed it away. Sentence2: They walked to the nearest park. Sentence3: They laid out a blanket and began to set out their food. Sentence4: Everyone enjoyed sandwiches, fruit and more.

Ex Output:
5, The family had a good day.

Ex Input:
Sentence1: I turned off my computer so I wouldn't cheat. Sentence2: I turned off the TV so I wouldn't be distracted. Sentence3: I opened the paper to the Leisure section. Sentence4: I finished the entire crossword puzzle in one hour.

Ex Output:
1, I decided I needed to finish a Sunday crossword.