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: Mia entered a chess tournament. Sentence 2: She thought she would win easily. Sentence 3: After all, she was a great player! Sentence 4: But she lost within an hour. Sentence 5: Mia was forced to concede defeat.\ Choices: a. Shovel. b. Chess.

b