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: The humane society held an anniversary celebration in August. Sentence 2: The staff, volunteers and members were pleased with the outcome. Sentence 3: People who attended donated a lot of money. Sentence 4: Another satisfactory result was an old dog getting adopted. Sentence 5: That dog had been at the shelter for months, so everyone was happy. Choices: a. A Successful Fundraising Event. b. Off to War.

a