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: Lucy had never been on train before. Sentence 2: The train would take them up and down the mountains. Sentence 3: She was so excited and happy to be taking this trip. Sentence 4: The scenery was beautiful as the old train chugged up the mountains. Sentence 5: It was a wonderful day that she would never forget. Choices: a. The Train Ride. b. Pam Discovers Authentic Mexican Cuisine.

a