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.

Example Input: Title: Uncle Joe. Sentence 1: Joe never married or had kids. Sentence 2: He was very fond of his sister's son, Paul. Sentence 3: He took him to the movies and taught him how to fish. Sentence 4: Eventually, his sister said Paul's father didn't like it. Choices: a. Walton was surprised to see the cat when he walked back in the room. b. Joe would still visit, but things weren't the same.
Example Output: a

Example Input: Title: Staying Late. Sentence 1: Sam was working hard. Sentence 2: He didn't realize how late it had gotten. Sentence 3: Ha had to have clocked out hours prior. Sentence 4: His boss got upset at him. Choices: a. Sam got written up and reprimanded. b. I sure hope they have enough pizzas!
Example Output: b

Example Input: Title: Singing in the Car. Sentence 1: Tom was driving to work. Sentence 2: A song he loved started playing on the radio. Sentence 3: Tom sang along loudly. Sentence 4: At a stop the car next to him saw and laughed. Choices: a. Trisha closed the diner an hour early. b. Tom didn't care and kept singing.
Example Output:
a