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: The mountain loomed on the horizon. Sentence 2: They had their gear all packed, it was time to go. Sentence 3: It was a direct vertical ascent, almost 1000 feet straight up. Sentence 4: They began slowly making their way up. Sentence 5: The summit would take days, but they knew it would be worth it. Choices: a. Climbing. b. Going Skiing.

a