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: Allie was getting engaged. Sentence 2: She told all her friends. Sentence 3: They were not happy for her. Sentence 4: Allie was so disappointed. Sentence 5: She then realized maybe they were not true friends. Choices: a. Tripping over the gown. b. Not happy for the engagement.

Ex Output:
b

Ex Input:
Sentence 1: Mark was neck-deep in college loans. Sentence 2: One day his university called him for alumni donations. Sentence 3: Because of his already looming loans, Mark fumed at the request. Sentence 4: He spent half an hour scolding the university employee. Sentence 5: He soon regretted it and donated anyway. Choices: a. fence. b. Loans.

Ex Output:
b

Ex Input:
Sentence 1: Kim really loved the rain. Sentence 2: But it rarely rained in her area. Sentence 3: One day, she woke up to the sound of rainfall however. Sentence 4: And it made her really happy. Sentence 5: And she decided to take a beautiful walk through her neighborhood. Choices: a. Rainy Walk. b. Wallace and The Cheese.

Ex Output:
a