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: Siegfried was playing chess in the park. Sentence 2: He was playing with an old man. Sentence 3: The old man was too good. Sentence 4: Siegfried lost every game. Sentence 5: Siegfried smiled though because he knew he let him win. Choices: a. Chess. b. Ice.

a