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: Jan and Julie were sisters. Sentence 2: The sisters were complete opposites. Sentence 3: Jan loved art and Julie loved numbers. Sentence 4: One day, the sisters decided to open a clothing store. Sentence 5: The sisters combined their talents to create a successful business. Choices: a. Sisters. b. The poisonous bush.

Ex Output:
a

Ex Input:
Sentence 1: Tom loved going shooting. Sentence 2: He tried to go at least twice a month. Sentence 3: Last time he made a new friend. Sentence 4: The new friend was equally enthusiastic. Sentence 5: They both started going together. Choices: a. Shooting Day. b. The Foot Race.

Ex Output:
a

Ex Input:
Sentence 1: Jenny was tired from work. Sentence 2: She needs to go to her second job in a couple hours. Sentence 3: Jenna decided to take a thirty minute nap. Sentence 4: However, Jenna overslept. Sentence 5: She is late to her second job. Choices: a. Nap. b. Annoying sister.

Ex Output:
a