You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Joe loved to scare his little brother during Halloween. Sentence 2: Joe would play scary pranks on him. Sentence 3: But Andrew was tired of it and decided to get back at Joe. Sentence 4: Andrew got his revenge in Halloween and scared Joe. Sentence 5: Joe would get him back next Halloween. Choices: a. Table. b. Halloween.
Output:
b