Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: One morning, David woke up to a very weird noise. Sentence 2: It sounded like someone was tapping on the sides of his house. Sentence 3: Looking out the window, he saw nothing. Sentence 4: Going outside, he couldn't find anything until he saw the nest. Sentence 5: There were three baby birds and a mother bird tapping on the window.

David's Nest