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: Timmy loved his big balloon. Sentence 2: He was carrying it around everywhere. Sentence 3: All of a sudden it got snagged on a nail and popped. Sentence 4: Timmy freaked out. Sentence 5: Someone was nice enough to get him a replacement. Choices: a. Get Some Air. b. Burst Balloon.

b