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: Trudy felt sad so thought she needed a pet. Sentence 2: She decided to buy a Puli. Sentence 3: She called some Puli owners in town and asked to buy one. Sentence 4: The third Puli owner agreed to sell Trudy one of her dogs. Sentence 5: So Trudy bought a Puli and is now much happier. Choices: a. Tall people.. b. Puli.
Output:
b