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: Lily loved to paint near her bedroom window. Sentence 2: She always left her paintbrushes in a cup on the window ledge. Sentence 3: One day, Lily finds that someone has taken her paintbrush. Sentence 4: She searches all over the house in hopes of finding it. Sentence 5: When Lily looks under the bed, she sees her cat with the paintbrush! Choices: a. The Thief. b. WWII Love Story.

a