TASK DEFINITION: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
PROBLEM: Sentence1: There was an African runner about to compete. Sentence2: His name was Abdul and he trained hard. Sentence3: Day and night for years. Sentence4: He entered into a race with 500 entrants.

SOLUTION: The race took place and Abdul didn't win.

PROBLEM: Sentence1: James was on his way to the podium when the rain started. Sentence2: The weather caused everyone in the crowd to seek shelter. Sentence3: An umbrella was placed over James's head by security. Sentence4: He was told it was okay to cancel the speech because of weather.

SOLUTION: Disappointed, he agreed and was escorted to his vehicle.

PROBLEM: Sentence1: I walked inside of the dentists office. Sentence2: After signing the attendance board, the dentist greeted me. Sentence3: He showed me where to sit. Sentence4: Afterwards, he started to operate on my teeth.

SOLUTION:
I was nervous but he reassured me that everything was fine.