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: Gus thought the u-haul he rented was too big. Sentence 2: He'd only wanted the 15 footer, but they'd given him the 17. Sentence 3: He was surprised when he had it almost filled up. Sentence 4: Gus still had chairs and tables to load that couldn't fit. Sentence 5: He was bummed that he'd underestimated how big he needed it. Choices: a. Wasn't Big Enough. b. Albert.
Example Output: a

Example Input: Sentence 1: Eve is a chef. Sentence 2: One time she was invited to a tv cooking show. Sentence 3: People really liked her recipes and tricks. Sentence 4: She became really famous. Sentence 5: She now has her own tv show. Choices: a. Listening to npr. b. The chef.
Example Output: b

Example Input: Sentence 1: Due to the recent rains, the grass in my yard grew very tall. Sentence 2: My neighbor told me to cut it as it looked unsightly. Sentence 3: I refused, so he brought out his lawnmower and cut it for me. Sentence 4: Then he sent me a bill for $20 for the mowing job he did. Sentence 5: I refused to pay the bill. Choices: a. Long Wait. b. Neighbor.
Example Output:
b