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: One day, I was out back of our house with some friends as a teenager. Sentence 2: We were messing around, and one of my friends had a BB gun. Sentence 3: He was shooting things, and next thing I knew, I felt a sting. Sentence 4: My friend had shot me with the BB gun in my hand! Sentence 5: I had a BB stuck in my finger for months after that! Choices: a. Brain Surgery. b. BB Guns.

b