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'.

Example Input: Sentence 1: Lawrence always wanted to be an astronaut. Sentence 2: He trained and studied hard. Sentence 3: He passed the astronaut test on the first try. Sentence 4: He was overjoyed to learn that his first mission would be to the moon. Sentence 5: Lawrence flew to the moon and back on the spaceship. Choices: a. The Pasta. b. Flight to the Moon.
Example Output: b

Example Input: Sentence 1: Ron was trying to repair his mouse. Sentence 2: He'd cracked the plastic when he'd slammed it down too hard. Sentence 3: Ron used superglue to mend the edges. Sentence 4: His finger got some glue on it and became stuck on the mouse. Sentence 5: Ron poured some acetone on his finger to get it unstuck. Choices: a. Repair. b. West River Telecom.
Example Output: a

Example Input: Sentence 1: Brad was a band director. Sentence 2: He worked with his band to help them get ready for a big concert. Sentence 3: He encouraged the kids to practice as much as they could. Sentence 4: Finally, the day of the concert arrived. Sentence 5: Their hard work showed in their great performance. Choices: a. Dedication. b. Making Music.
Example Output:
b