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: We used to live near train tracks. Sentence 2: We could hear the horns at times. Sentence 3: I am a train buff and loved the sound. Sentence 4: We moved and I thought we were away from the trains. Sentence 5: Last week I heard train horns from a different railroad. Choices: a. Sample. b. Trains.
Example Output: b

Example Input: Sentence 1: The doll caught on fire. Sentence 2: The girl thought it was funny. Sentence 3: She watched it burn. Sentence 4: It caught the house on fire. Sentence 5: The whole house burned down. Choices: a. churros. b. Fire.
Example Output: b

Example Input: Sentence 1: Last month my wife drove me to get a haircut. Sentence 2: I am disabled and do not get out much. Sentence 3: I got my haircut quickly. Sentence 4: Afterward, we had coffee and pastries at a bakery next door. Sentence 5: I suspect my wife likes these haircut trips. Choices: a. Haircut and Coffee. b. Knitting Scarfs.
Example Output:
a