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: Jules had a dog named Willie. Sentence 2: When Jules went to work, Willie would wait for him by the door. Sentence 3: Willie would bark at the door if any strangers came by. Sentence 4: Jules thought Willie was a good watchdog. Sentence 5: Jules rewarded Willie with tasty dog snacks. Choices: a. Watchdog. b. The Labor Delay.

a