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: Late at the airport. Sentence 1: Jerome arrived very late at the airport. Sentence 2: He run to try to catch his plane. Sentence 3: But it was already gone and he had to wait. Sentence 4: He booked another flight for the night. Choices: a. So she decided to write a poem about it to alleviate the blow. b. And proceeded to sleep on a bench waiting for his next flight.

Ex Output:
b

Ex Input:
Title: Paris. Sentence 1: Jon could not sleep. Sentence 2: Tomorrow he's going to Paris. Sentence 3: Jon finally slept late into the night. Sentence 4: Jon woke up excited. Choices: a. Jon drove to the airport and flew on a plane to Paris. b. Norman's tree has grown to an immense size.

Ex Output:
a

Ex Input:
Title: Unknown Talent. Sentence 1: Rebecca loved to practice dancing and got very good. Sentence 2: Rebecca also had stage fright and was too scared to show anyone. Sentence 3: She talked herself into signing up for a local talent show. Sentence 4: When the time came to go on stage, Rebecca got too scared. Choices: a. Now on one will know how well Rebecca may have performed. b. And it was a hard time to wait until she was cured.

Ex Output:
a