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: Mike thought he was great at hockey. Sentence 2: He challenged Sam to a quick game. Sentence 3: Mike didn't know that Sam was good at hockey. Sentence 4: The game was very intense and lasted a while. Sentence 5: Eventually, Mike ended up beating Sam at hockey. Choices: a. Lunch Break. b. Hockey.

b