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: Gina had no idea where her house key was. Sentence2: She didn't want to tell her mom she lost it. Sentence3: She thought it would be easier to have a spare made secretly. Sentence4: But she would have to get the original from her mom's key chain.

Gina had to devise a plan to get the key without her mom knowing.