In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Input: Consider Input: Title: Mint. Sentence 1: Katherine loved to chew on mints. Sentence 2: She loved having a fresh breath. Sentence 3: One day, Katherine ran out of mints. Sentence 4: She had to quickly run to the store and buy more. Choices: a. Then, Katherine was able to keep her breath fresh for the day. b. Finally, he rushed to the store and bought more eggs.

Output: a

Input: Consider Input: Title: Goofing Off. Sentence 1: My niece works at her town community swimming pool. Sentence 2: Yesterday was a slow day as it was raining. Sentence 3: Her co workers made water balloons. Sentence 4: She got into a water balloon fight. Choices: a. I now have two brown dishes. b. She said it more fun than doing nothing.

Output: b

Input: Consider Input: Title: Flowers. Sentence 1: Lucy bought a bunch of flowers for her front yard. Sentence 2: She planted them and they looked very nice. Sentence 3: The neighbor's dog dug them all up and destroyed them. Sentence 4: Lucy's neighbor felt so bad. Choices: a. Even though she had ruined the outing, her friends were there for her. b. He offered to buy Lucy all new flowers.
Output: b