You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Anna's cat caught a bird one day. Sentence 2: The cat injured the bird's wind pretty badly. Sentence 3: Then Anna's mom brought the bird inside. Sentence 4: Together, the two bandaged its wings and tail. Sentence 5: Soon, the healed bird was ready to fly! Choices: a. You won!. b. Bird.
Output:
b