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 does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Ex Input:
Title: The Truck Driver. Sentence 1: Frank was the youngest of seven brothers. Sentence 2: When he was a teenager, he committed many crimes. Sentence 3: One day, he decided to give up crime and become a truck driver. Sentence 4: On one of his Louisiana stops, he met Joyce. Choices: a. She spent the profit on a boat. b. After dozens of visits, he settled in Louisiana and they were married.

Ex Output:
a

Ex Input:
Title: Pet. Sentence 1: Will decided he'd like to have a pet. Sentence 2: Will went to a local pet store. Sentence 3: He narrowed his choices down to either a lab puppy or a turtle. Sentence 4: Will decided on the puppy. Choices: a. The change had been scary, but she was so happy she had done it. b. Now, years later, Will and that lab are best friends.

Ex Output:
a

Ex Input:
Title: Trail. Sentence 1: The man hiked on the trail. Sentence 2: A large tree had fallen on the trail. Sentence 3: The man could not go any farther. Sentence 4: He returned to the start of the trail. Choices: a. Hope didn't feel so far away from her mother after that. b. He found another trail to hike.

Ex Output:
a