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: The mother decided she would take her children to the park. Sentence 2: They participated in a program about sea turtles. Sentence 3: At night they gathered for a talk about the turtles. Sentence 4: The ranger got a call about a turtle on the beach. Sentence 5: They all raced together to watch the turtle lay eggs on the beach. Choices: a. Disappointing Dinner. b. Sea Turtle.
Example Output: b

Example Input: Sentence 1: Tim took his son to the fair. Sentence 2: They were trying to hit bottles to win a toy. Sentence 3: His son hit three different bottles. Sentence 4: So he got to choose his toy. Sentence 5: He choose a dog. Choices: a. Winning a toy. b. No gift back.
Example Output: a

Example Input: Sentence 1: Sophie's grandfather repaired watches for a living. Sentence 2: His job required manual dexterity. Sentence 3: As he got older, his arthritis worsened. Sentence 4: His arthritic hands would not allow him to do the work he enjoyed. Sentence 5: Sophie's grandfather was forced to quit his job. Choices: a. Easy come easy go. b. Watch Hands.
Example Output:
b