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: Julie was shopping in her local grocery store. Sentence 2: She was waiting in line at the checkout stand. Sentence 3: When she was going to put her items on the belt a man groped her. Sentence 4: She let out a whelp and slapped the man behind her. Sentence 5: She complained to security and had the man arrested. Choices: a. Personal Space. b. Out of Bread.
Example Output: a

Example Input: Sentence 1: Lisa had a house cat Ruffles. Sentence 2: Ruffles always stayed inside. Sentence 3: One day ruffles wanted to go outside. Sentence 4: He walked out. Sentence 5: Luckily Lisa caught him in time. Choices: a. Don't go outside. b. soccer player.
Example Output: a

Example Input: Sentence 1: Liz noticed a bird's nest by her bedroom window. Sentence 2: She didn't think much of it until that night. Sentence 3: She awoke to loud hooting. Sentence 4: It was an owl's nest! Sentence 5: Since they are nocturnal she knew she wasn't going to get much sleep. Choices: a. Up All Night. b. Concert Tickets.
Example Output:
a