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: Tim was trick or treating during Halloween. Sentence 2: There was one house that looked dark and spooky. Sentence 3: Tim ran up to ring the doorbell and knock. Sentence 4: Eventually someone came out and told him to leave. Sentence 5: The people living there didn't celebrate that holiday. Choices: a. Test. b. Grumpy Neighbor.

b