Definition: In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.
Input: Sentence 1: Brian was trying to teach Karyn to play chess. Sentence 2: Karyn didn't like following the rules of the game. Sentence 3: Brian had taken almost all of her pieces. Sentence 4: Karyn crafted a plan to win the game. Sentence 5: She launched atomic warheads and destroyed the rest of Brian's pieces. Choices: a. Chess. b. State Fair.

a