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: Jim wanted to grow figs. Sentence 2: He went to the nursery. Sentence 3: He bought a new fig plant. Sentence 4: He planted it. Sentence 5: It grew quickly! Choices: a. High heels. b. The Fig Tree.
Example Output: b

Example Input: Sentence 1: Pete liked to eat processed food. Sentence 2: Mac and cheese was his favorite. Sentence 3: He liked to add extra butter when he made it. Sentence 4: He knew it wasn't healthy but he didn't care. Sentence 5: He made two boxes and ate it all. Choices: a. Cigarettes. b. Mac and Cheese.
Example Output: b

Example Input: Sentence 1: Gary was invited to his niece's preschool graduation. Sentence 2: At first, Gary was shocked at the concept of preschool graduation. Sentence 3: However, Gary quickly got over the shock because of his niece. Sentence 4: Gary decided he would bring her some balloons, and a teddy bear. Sentence 5: Gary could not wait to see his niece on her preschool graduation. Choices: a. Steve and Nancy Get Married. b. Preschool Graduation.
Example Output:
b