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: The man pointed at the sky. Sentence 2: His friend looked at where he was pointing. Sentence 3: He could not see anything. Sentence 4: The man said there was a bird. Sentence 5: His friend could see it then. Choices: a. Firework Chase. b. Finger.

b