TASK DEFINITION: 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.
PROBLEM: Sentence1: Sam hopped into his mail truck and drove off. Sentence2: He drove so fast he didn't see a pothole in the road. Sentence3: The truck bounced hard when he hit the pothole. Sentence4: Sam's head hit the steering wheel.

SOLUTION: 2, He was trying to do his route fast to get home early today.

PROBLEM: Sentence1: John was diagnosed with bone cancer. Sentence2: He was sad and felt defeated. Sentence3: But, he decided to enroll in chemotherapy and fight the disease. Sentence4: John eventually beat the cancer.

SOLUTION: 4, He struggled for two years to overcome cancer.

PROBLEM: Sentence1: It wasn't in the living room. Sentence2: She had been in the car before napping in the living room. Sentence3: She grabbed her dad's keys and ran outside. Sentence4: She found her phone in the car.

SOLUTION:
1, Gina misplaced her phone at her grandparents.