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: It was Deb's birthday. Sentence 2: She had just turned 5. Sentence 3: Her parents threw a party for her. Sentence 4: All her friends came. Sentence 5: She thought it was a great surprise. Choices: a. Surf Dude. b. Deb's Surprise.

b