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: Kerry rode the bus home every day after her self-defense class. Sentence 2: One day, a woman riding the bus pulled out a gun and attacked Kerry! Sentence 3: Kerry pinned the attacker to the ground and took her gun. Sentence 4: The driver called the police and the attacker was arrested. Sentence 5: Kerry was very glad that she learned how to fend off attackers.

Attack on the Bus