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: Bill's buddy Marty invited him to a sleep over. Sentence 2: Bill and Marty stayed up all night watching horror movies and talking. Sentence 3: They finally fell asleep around 4 in the morning. Sentence 4: The boys slept until noon. Sentence 5: The next day Bill went home and thought about how fun it all was. Choices: a. Tomato. b. Boys Sleepover.

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: Debbie's knee was giving her problems. Sentence 2: She limped when she walked. Sentence 3: Debbie got a knee brace from her doctor. Sentence 4: It helped her a lot! Sentence 5: Soon she could walk without a limp. Choices: a. The fair. b. The Knee Brace.

Ex Output:
b