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: I went to a costume party. Sentence 2: I glued leaves to my head. Sentence 3: I also wore a green cape. Sentence 4: Everyone laughed at my costume. Sentence 5: However, I won first prize in the costume contest. Choices: a. The costume party. b. Hunka Burnin Pancake.
Output:
a