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: Josh loved to run. Sentence 2: He would run everywhere he had to go. Sentence 3: Josh entered into a marathon in his city. Sentence 4: Josh was excited and nervous at the same time. Sentence 5: Josh did very well and finished the marathon tired but proud. Choices: a. Casino. b. The Run.

b