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: George was sitting inside his house. Sentence 2: And he thought it looked like a nice day to go outside. Sentence 3: He began walking to his local park. Sentence 4: But it became too hot and sunny for him. Sentence 5: Half way there, George decided to go back home. Choices: a. Insomnia. b. Sunny Day.

b