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: The logger. Sentence 1: The logger wanted to make a raft for the river. Sentence 2: He picked his trees carefully and started to cut them. Sentence 3: They fell one after another according to plan. Sentence 4: The last tree fell the wrong way and almost hit his friends! Choices: a. She finally found the perfect pair and was ready for the dance. b. Luckily they jumped away and everyone was alright after it fell.

Ex Output:
b

Ex 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.

Ex Output:
b

Ex Input:
Title: Football game. Sentence 1: The three friends went to a football game. Sentence 2: They were all excited about going. Sentence 3: They bought their tickets and booked a hotel room. Sentence 4: When they got to the game, they were sad to lose. Choices: a. However, they were glad to have spent time together. b. The hostess returned the lost phone to Mart.

Ex Output:
a