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: Job interviews. Sentence 1: Jonah wanted to hire the best employee for his firm. Sentence 2: He looked at resumes and called in the best. Sentence 3: As interviews went by he was getting desperate. Sentence 4: He couldn't find anyone good enough. Choices: a. But Paul was bad at his job and his brother fired him. b. Until at the end, the perfect candidate shown up and he hired her.

Ex Output:
b

Ex Input:
Title: Tooth. Sentence 1: Patty had a sore tooth. Sentence 2: From childhood, Patty had a fear of the dentist. Sentence 3: Patty found a local dentist that provides sedation dentistry. Sentence 4: Patty went into have her tooth fixed. Choices: a. She knew she could eat this everyday. b. Patty did not remember a thing and was so happy.

Ex Output:
b

Ex Input:
Title: Leaking ceiling. Sentence 1: Susy had a very large house. Sentence 2: Last week it snowed very badly. Sentence 3: She thought she got rid of all of the snow. Sentence 4: But unfortunately the roof leaked. Choices: a. So Susy had to call someone. b. They still preferred their own favorites, but their minds were opened!

Ex Output:
a