Instructions: 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: I knew a man who was good at chess. Sentence 2: He would play at the park every day. Sentence 3: I watched him play another guy. Sentence 4: They both looked very focus. Sentence 5: The man I knew won the game. Choices: a. Cooking Disaster. b. Chess.
Output:
b