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.

Ex Input:
Title: Cleaning. Sentence 1: Derek was helping his dad clean the basement. Sentence 2: They found a bunch of old baseball cards. Sentence 3: Derek's dad said Derek could have the cards. Sentence 4: Derek went and researched all the players on the cards. Choices: a. He started watching more baseball with his dad. b. The returned to their car and drank a lot of cold water.

Ex Output:
a

Ex Input:
Title: New Dog. Sentence 1: The Smith family had been looking for a dog. Sentence 2: They went to the shelter every few weeks to find the perfect dog. Sentence 3: One weekend they finally found it. Sentence 4: They adopted a sweet black and white dog. Choices: a. But with no money he made it to the soup kitchen. b. They were excited to have new addition to their family.

Ex Output:
b

Ex Input:
Title: Poor. Sentence 1: Ray lived in a poor neighborhood. Sentence 2: And everyday he dreamed of moving somewhere safer. Sentence 3: But he could barely afford to live in his current house. Sentence 4: And he didn't see anyway he could make more money. Choices: a. Ray eventually stopped dreaming because it just made him more upset. b. Rob was happy after winning an MVP award.

Ex Output:
a