You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: I had a lot of difficulty waking up this morning. Sentence 2: I rolled around in bed, frustrated as a song played in my mind. Sentence 3: It was a song by John Lennon, one that never really became popular. Sentence 4: After listening to it in my head for an hour, I gave up and got up. Sentence 5: As I sat at my computer, it continued to be stuck in my head for hours. Choices: a. Lennon Lethargy. b. Howlish.
Output:
a