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: Jeff was amassing a large book collection in his house. Sentence 2: He spent one night organizing all the books he had in his house. Sentence 3: There were so many books he had to put them in different rooms. Sentence 4: When Jeff was finished organizing, he made a card catalogue for them. Sentence 5: Jeff was filled with a great sense of accomplishment from his library. Choices: a. Book King. b. Football Tryout.

a