instruction:
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.
question:
Sentence1: Dave loved the outdoors. Sentence2: One day he decided to go on a hike. Sentence3: As he walking on the trail, he heard a hissing sound. Sentence4: To his right on the ground was a rattle snake!
answer:
5, Dave backed away slowly.

question:
Sentence1: I decided to pay a visit to someone I've been dating online. Sentence2: I never seen her in person, but I trust her. Sentence3: The airplane flight took several hours. Sentence4: When I arrived at the hotel, she said she's in front.
answer:
5, I walked in and saw her.

question:
Sentence1: Anna went to the beach. Sentence2: The tide drew out, and she saw a tide pool. Sentence3: She went to inspect it, and she was amazed at all the life in it. Sentence4: There were fish, sea urchins, starfish - it was incredible!
answer:
5, Anna watched the sea life and thought about the wonder of nature.