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: Jim was planning on buying his first house. Sentence 2: He was very nervous about picking the right place. Sentence 3: He took several trips to different houses. Sentence 4: He finally found the one he just couldn't live without. Sentence 5: Jim signed the contract to buy the house grinning ear to ear. Choices: a. NASA. b. Jim buys a house.

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: My boss called me to the office. Sentence 2: He asked if I can work during the night shift. Sentence 3: Since I really needed the money, I said yes. Sentence 4: The shift lasted a total of 6 hours. Sentence 5: As soon as I got home, I fell on the couch and went to sleep. Choices: a. Night Shift. b. Ziplining.

Ex Output:
a