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.
Input: Sentence1: Jennifer wanted to take her three kids on a vacation to Disneyland. Sentence2: A single mom, she worked three jobs to save enough money. Sentence3: After earning enough money, she bought non-refundable plane tickets. Sentence4: The family set off for the airport, excited for their vacation.

Then their car broke down on the highway and they missed their flight.