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: 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: Samantha wanted to go swimming in her pool. Sentence 2: Her pool was dirty though. Sentence 3: She didn't want to clean it. Sentence 4: She got in the car. Sentence 5: She drove to the beach. Choices: a. Tickets. b. Better Idea.
Example Output: b

Example Input: Sentence 1: Sarah heard about a new organic bakery in town. Sentence 2: So she decided to go there and buy bread. Sentence 3: But when she tried it, it was tough and stale. Sentence 4: And remembering the of the high cost of it made her disappointed. Sentence 5: Sarah ended up using it for French toast. Choices: a. Bad Dog. b. Bad Bread.
Example Output:
b

