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: Adrian needed to deposit funds at the bank. Sentence 2: He approached the teller. Sentence 3: When he reached for his wallet, he found he'd forgotten his card. Sentence 4: The teller informed him he couldn't deposit without it. Sentence 5: He headed back home feeling quite silly. Choices: a. Bank. b. Shelly's Lunch.

Ex Output:
a

Ex Input:
Sentence 1: Blake was the meanest kid in school. Sentence 2: So one day all the kids ganged up together to talk to him. Sentence 3: As he was alone, Blake had to listen. Sentence 4: But as soon as they were gone, he was ready to retaliate. Sentence 5: The next day he picked each kid individually to bully them one by one. Choices: a. Mean boy. b. Lost Money.

Ex Output:
a

Ex Input:
Sentence 1: Tim has a history test tomorrow. Sentence 2: He has not studied. Sentence 3: He decided to stay up and pull an allnighter. Sentence 4: When he got to school he fell asleep. Sentence 5: Tim failed his test. Choices: a. History test. b. No Pets.

Ex Output:
a