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: Bob sat there in the chair staring at the tray of sharp tools. Sentence 2: The novacane had kicked in and he was drooling fiercely. Sentence 3: He wasn't sure what was coming but he just knew it would be awful. Sentence 4: In walked the Dentist who looked at the tools and pushed them aside. Sentence 5: When he pulled out the chainsaw Bob just fainted. Choices: a. Noisy. b. Dentist.

b