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: Last winter my brothers and sisters brought my mom a coat. Sentence 2: This coat was a surprise for her birthday. Sentence 3: One of my sisters hid the coat in her bedroom closet. Sentence 4: The day before her birthday, she enter the kitchen wearing the coat. Sentence 5: We all had to laugh. Choices: a. Busy Waitress. b. Shocking Birthday Surprise.
Output:
b