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: The kids had a pet turtle. Sentence 2: It was green with a big shell. Sentence 3: They fed it carrots every night. Sentence 4: They worried that he was lonely. Sentence 5: They bought a second turtle to keep him company. Choices: a. The Turtle. b. Pizza Lasagna.

a