Definition: 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: Sentence 1: John's watch had broken. Sentence 2: His birthday was coming up. Sentence 3: John's wife went to the jewelry store. Sentence 4: She found a watch for John. Sentence 5: She gave him the watch for his birthday. Choices: a. Kidneys. b. A Birthday Gift.
Output:
b