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: Amy unexpectedly found out she was pregnant. Sentence2: At first she was not excited and was very nervous. Sentence3: As time went on, she became very excited to have a baby. Sentence4: She couldn't wait for the baby to be born.

When the baby was finally born, she was overjoyed to be a mom.