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: Joe listened to music when he cleaned. Sentence 2: Joe had the music loud. Sentence 3: He heard a knocking on his door. Sentence 4: His neighbor told him to lower the music. Sentence 5: So Joe lowered his music.

The knock