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'.

Ex Input:
Sentence 1: Roger was hungry. Sentence 2: He checked the fridge. Sentence 3: The fridge was empty. Sentence 4: Roger went to the store. Sentence 5: He came home with lots of food. Choices: a. Hunger. b. Noah's Arches.

Ex Output:
a

Ex Input:
Sentence 1: The Smiths decided to go to their summer home for vacation. Sentence 2: They drove across three states to reach their summer home. Sentence 3: They hiked, fished, swam, barbecued, and shopped while there. Sentence 4: They spent a whole week at their summer home. Sentence 5: They could not stop talking about their vacation for a week. Choices: a. Summer Home. b. Very bad burn.

Ex Output:
a

Ex Input:
Sentence 1: Tom was using a computer. Sentence 2: He was transferring files from his thumb drive. Sentence 3: Tom's friend didn't realize it. Sentence 4: He accidentally pulled the thumb drive out. Sentence 5: Tom lost several files. Choices: a. Store Alarm. b. Messed Up Thumb Drive.

Ex Output:
b