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: Greg was doing shopping. Sentence 2: He went into his local gas station. Sentence 3: While standing in line he see's a sign for lottery. Sentence 4: He decides to pick up a ticket. Sentence 5: Turns out it was the winning ticket. Choices: a. Greg wins big. b. Measure.

Ex Output:
a

Ex Input:
Sentence 1: Amanda works at a local grocery store. Sentence 2: An angry woman walked in the store and demanded a refund on her milk. Sentence 3: The woman said she did not mean to buy any milk. Sentence 4: However, the jug of milk was nearly empty. Sentence 5: Amanda's manager scolded the woman and did not give her a refund. Choices: a. New Clothes. b. Angry Customer.

Ex Output:
b

Ex Input:
Sentence 1: I wanted a piece of jewelry that meant something special. Sentence 2: I looked at a specialty shop on the internet. Sentence 3: They had rings in the shapes of names. Sentence 4: I purchased one in my son's name. Sentence 5: I wear it every single day. Choices: a. Ring. b. Job Opportunity.

Ex Output:
a