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: Joe thought America was the best country and hated all others! Sentence 2: Then his class did a unit on global governments and cultures. Sentence 3: Joe learned a lot. Sentence 4: He realized that he could love his country and still like others. Sentence 5: Joe learned a lot about respecting different cultures! Choices: a. Learning. b. Twins.

a