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: Matthew's front yard had a single tree in it. Sentence 2: He decided to make his son a swing. Sentence 3: His grandpa did the same for him when he was that age. Sentence 4: He threw a rope over a branch and tied an old tire to it. Sentence 5: His son swung for hours just like he did when he was a kid. Choices: a. Tire Swings. b. Fish.

a