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: Tom lived in an old house. Sentence 2: A water pipe burst. Sentence 3: Tom didn't realize it until days later. Sentence 4: His entire basement was flooded. Sentence 5: It took thousands of dollars to fix. Choices: a. Water Damage. b. Tool Shed.

a