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: John was young and like to hide his older sister's barbies. Sentence 2: He went to her room when she wasn't home and took her favorite barbie. Sentence 3: He hid it under his bed. Sentence 4: His sister came home and panicked, she couldn't find her barbie. Sentence 5: John felt bad and returned the barbie to his sister. Choices: a. The Barbie Thief. b. Painting.

a