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: Helen was offered a retirement saving account through her employer. Sentence 2: She found all of the expense ratios inappropriately high. Sentence 3: She asked the employer's finance director about this. Sentence 4: They told her that if she could find a better option she should accept. Sentence 5: Helen gladly found an IRA with an expense ratio between 0,10 and 0,30. Choices: a. The Dress Stain. b. Investment Options.

Ex Output:
b

Ex Input:
Sentence 1: James was trying to get his license. Sentence 2: This was his second time taking the test. Sentence 3: His problem was parallel parking. Sentence 4: This time he parked perfectly! Sentence 5: He could now say hello to the roads. Choices: a. Third Person Daphne. b. Roads.

Ex Output:
b