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.

Q: Sentence1: Rex missed his high school days of being a gymnast. Sentence2: Now he was afraid he had lost his athletic touch forever. Sentence3: However, a friend encouraged him to try a cartwheel on the beach. Sentence4: Rex did an awesome cartwheel on his first try!

A: 5, He was relieved.
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Q: Sentence1: Gregory took a pottery class at a nearby night school. Sentence2: He was terrible at sculpture. Sentence3: He grew to like throwing pots on pottery wheels very much. Sentence4: He was very proud of his pots.

A: 4, Eventually he was making pots half as tall as he was.
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Q: Sentence1: My friends and I got invited to a party at college. Sentence2: We got all dressed up for the exciting event. Sentence3: We were all so excited to have fun! Sentence4: We had a great time!

A:
4, At the party, we danced the whole time.
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