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: Caitlyn loves barbecuing. Sentence 2: She learns new recipes for making ribs and burgers. Sentence 3: Caitlyn always throws barbecues for her friends and makes them food. Sentence 4: Caitlyn's friends want to show how much they appreciate her cooking. Sentence 5: They buy Caitlyn a grill as a surprise. Choices: a. Barbecue. b. Phil's car breaks down.
Output:
a