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: Eleanor went on a vacation to Maui. Sentence 2: While there, she wanted to have an authentic luau experience. Sentence 3: She paid for a big resort luau. Sentence 4: It was fun, but felt cheesy and inauthentic. Sentence 5: A local later told her that there are no authentic luau events left. Choices: a. Oxygen. b. Luau.

b