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: He thought that if they bite him he would turn into a vampire. Sentence2: One day he saw a bat in his bathroom. Sentence3: He freaked out so much he screamed. Sentence4: The bat flew directly toward the source of the scream.
Example Output: 1, Arnold was scared of bats.

Example Input: Sentence1: Marsha had just moved in with her husband. Sentence2: She had envisioned herself cooking a fantastic meal. Sentence3: Unfortunately, she burnt the chicken and overcooked the rice. Sentence4: Marsha was devastated.
Example Output: 2, She had never cooked a meal before, and that was her job tonight.

Example Input: Sentence1: Sometimes they float on inner tubes for hours enjoying the cool water. Sentence2: They can not go to the river this year. Sentence3: Ashley broke her leg and can not be in the water. Sentence4: Ashley told Brad to go without her.
Example Output:
1, Every summer Brad and Ashley go swimming in the river.