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: Ralph needed a new computer mouse. Sentence 2: So he went to the computer store. Sentence 3: He found a nice mouse. Sentence 4: He bought the nice mouse. Sentence 5: Ralph no longer needed a mouse. Choices: a. mouse. b. The Mortgage.

a