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: Sam's children won a goldfish at a carnival. Sentence 2: The kids brought the fish home and took care of it. Sentence 3: One day, Sam found the fish floating at the top of the bowl. Sentence 4: Sam ran to the pet store and bought a new fish. Sentence 5: Sam's children were unaware that the fish had changed. Choices: a. The fish. b. Games or Gift?.

a