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: Consider Input: Sentence 1: Renee wanted to lose weight and get in better shape. Sentence 2: She found a program for free that started slow. Sentence 3: She started walking every day and jogging for a few minutes. Sentence 4: Soon she was only jogging every day and not walking. Sentence 5: After just three months, Renee was able to run her first 5K. Choices: a. Couch to 5K. b. Mixed Messages.

Output: a

Input: Consider Input: Sentence 1: Paige was nervous when she brought her new boyfriend home. Sentence 2: Her dad was very protective of her. Sentence 3: She was worried he would disapprove of him. Sentence 4: Her boyfriend and dad ended up talking for hours. Sentence 5: She now thinks her dad likes her boyfriend more than he likes her. Choices: a. Next One. b. Paige's Boyfriend.

Output: b

Input: Consider Input: Sentence 1: The Johnsons were a musical family. Sentence 2: There were 14 children and their 2 parents in the family. Sentence 3: Everyone was very talented but one stood out. Sentence 4: She was the baby of the family but had the voice of an angel. Sentence 5: Many years later she is an international superstar. Choices: a. The Proposal. b. The Best.
Output: b