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: Kilo was an expert builder of battle robots and their weapons. Sentence 2: He was the top three fighter in the robot battle leagues. Sentence 3: He was due to compete for the spot of number one this week. Sentence 4: He build a special robot just in time for the competition. Sentence 5: He placed first and took the award home thanks to his genius robots. Choices: a. Robot Wars. b. Escaped Convict..

a