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: Gary wanted to become a professional actor. Sentence 2: He fervently desired to star in artistic, dramatic movies. Sentence 3: His parents refused to fund his acting education. Sentence 4: Gary began taking online acting classes on video sites. Sentence 5: He improved and had a successful audition later that same year. Choices: a. Acting Classes. b. The Pens.
Example Output: a

Example Input: Sentence 1: Mark decides he has studied enough for a little while. Sentence 2: He leaves the library and notices some other students playing frisbee. Sentence 3: He joins them and plays for a few hours. Sentence 4: Mark is happy with his study break. Sentence 5: He decides to return to the library. Choices: a. Mark Plays Frisbee. b. Nanny and Grandpa.
Example Output: a

Example Input: Sentence 1: Sasha was sleeping one night. Sentence 2: She woke up and the bed was wet everywhere. Sentence 3: She turned the light on to see what it was. Sentence 4: Sasha learns she peed the bed. Sentence 5: Sasha is embarrassed at herself and washes her sheets. Choices: a. Buddy the dog dies. b. Sasha wets the bed.
Example Output:
b