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: Brian was riding his bicycle one day. Sentence 2: He decided to ride down his driveway. Sentence 3: He lost control of his bicycle. Sentence 4: Brian crashed into the neighbor's mailbox. Sentence 5: He discovered half of his front tooth was missing.

Chipped Tooth