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: Family. Sentence 1: Sarah's mom was visiting from Florida. Sentence 2: They went to Sarah's favorite restaurant. Sentence 3: They talked for hours without realizing the time. Sentence 4: They had talked passed closing time! Choices: a. Sarah tipped the waitress generously. b. They were both better off for the storm coming in.

Ex Output:
a

Ex Input:
Title: Mini Golf. Sentence 1: One day Sally and her friends decided to play mini golf. Sentence 2: Sally ended up scoring a hole in one! Sentence 3: Her friends applauded her. Sentence 4: She ended up scoring the most points. Choices: a. After years of hard work he debuted as a drag racer. b. They had a lot of fun.

Ex Output:
b

Ex Input:
Title: Coat. Sentence 1: My father wore a blue coat to work. Sentence 2: He always paired it with a hard hat. Sentence 3: His job required wearing those things every day. Sentence 4: I started getting them out for him in the mornings. Choices: a. I was short so they were difficult to reach. b. I told him I couldn't take it anymore.

Ex Output:
a