Instructions: 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: Kanye West went to a music festival. Sentence 2: He asked to change the time he performed. Sentence 3: He set up the stage at night. Sentence 4: His light show wow'd the crowd. Sentence 5: People raved about it online. Choices: a. Glow Show. b. Vows.
Output:
a