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: Jake had locked himself out of his house. Sentence 2: He was a slender man so he thought he could use the chimney. Sentence 3: He climbed to the roof and shimmied down the chimney. Sentence 4: His feet reached the floor but he could go no further. Sentence 5: Twelve hours later someone heard his screams and he was rescued. Choices: a. Teaching Boys. b. A Costly Mistake.

b