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.

Sentence1: Clara went home from work one day. Sentence2: Then she realized she had locked herself out! Sentence3: Her keys were left on the kitchen table that morning. Sentence4: She had to call her mom for help.
Clara's mom helped right away.