Q: In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.
Title: The Seashore Song. Sentence 1: Once, there lived a brother and sister who lost their family. Sentence 2: They were so sad. Sentence 3: They prayed for a sign that their parents were watching them. Sentence 4: One day, they went to the beach.
A:
When they heard the ocean's song, they knew their parents were there.