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: Leaky Pen. Sentence 1: John was walking around with a big stain on his pants. Sentence 2: He didn't notice until someone pointed it out. Sentence 3: John realized his pen had leaked in his pocket. Sentence 4: It ruined his pants. Choices: a. He had to throw them away and get another pair. b. They all wished they could go back home and watch their TV's.

Output: a

Input: Consider Input: Title: Game of thrones marathon. Sentence 1: Game of thrones was on. Sentence 2: Susie hated that show. Sentence 3: She thought it was boring. Sentence 4: But her boyfriend loved it. Choices: a. Still she was sad that she had lost one of them. b. So he made her watch six hours straight of it.

Output: b

Input: Consider Input: Title: Chunky. Sentence 1: A little baby was born. Sentence 2: The parents saw her first. Sentence 3: The grandparents then saw her. Sentence 4: They all agreed on one thing. Choices: a. She was very chunky. b. It was cheaper than taking separate vacations.
Output: a