Instructions: 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: Alexander was an airplane pilot. Sentence 2: It was his first time flying a commercial plane for a large airline. Sentence 3: He was very nervous, but he tried his best to calm down. Sentence 4: He ran into turbulence on his flight, but he managed to bypass it. Sentence 5: He delivered all the passengers to their destination safely. Choices: a. Tinderton's Turn-Around. b. The Airplane Pilot.
Output:
b