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'.

Example Input: Sentence 1: Amanda had just started kindergarten. Sentence 2: Her mother usually packed a lunch for her. Sentence 3: One day mom had no time to pack a lunch. Sentence 4: She send money with Amanda to buy lunch. Sentence 5: Amanda loved the school lunch. Choices: a. School Lunch. b. The Shoes.
Example Output: a

Example Input: Sentence 1: Watson had always wanted to learn the saxophone. Sentence 2: After talking to his parents, they bought him one. Sentence 3: At first, he could not play anything. Sentence 4: After a lot of hard work, he could play it. Sentence 5: Now, Watson is very good at the saxophone. Choices: a. Saxophone. b. Parents.
Example Output: a

Example 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.
Example Output:
a