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: Jackie was very athletic when she was a child. Sentence 2: She liked to run long distances. Sentence 3: As she got older she continued to run longer and longer distances. Sentence 4: Jackie began training for a marathon. Sentence 5: Jackie completed her first marathon a few weeks ago. Choices: a. The Train Ride. b. Marathon (wo)Man.

b