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: Toni was invited last minute to the football game. Sentence 2: She walked into the stadium an hour late. Sentence 3: Unfortunately she missed good parts of it. Sentence 4: Yet Toni was then able to get a replay. Sentence 5: She realized she needed to go back. Choices: a. Late to the game. b. Just a drop of lemon oil.
Example Output: a

Example Input: Sentence 1: Pat went to the park to take photos. Sentence 2: He saw a couple with a dog. Sentence 3: He took a picture of the three. Sentence 4: The couple noticed and told Pat to delete the photo. Sentence 5: Pat deleted it and had to be more secretive from now on. Choices: a. Pat the Photographer. b. Pressure.
Example Output: a

Example Input: Sentence 1: Becky just had a baby. Sentence 2: Becky's husband left her for a younger woman when she was pregnant. Sentence 3: Becky tried to sleep for a few minutes but the baby started crying. Sentence 4: She changed the baby's diaper and rocked it to sleep. Sentence 5: Becky laid down again hoping for a few minutes of rest. Choices: a. Building Blocks. b. Diaper Duty.
Example Output:
b