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: Tom was fascinated with linguists. Sentence 2: He decided that speaking three languages constitutes a linguist. Sentence 3: Tom already spoke English and Spanish. Sentence 4: Tom dedicated himself to learning the Chinese language. Sentence 5: Tom eventually learned to speak fluent Chinese. Choices: a. English paper. b. Language.

b