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: Horatio Buys A Backpack. Sentence 1: Horatio is enrolling in college next fall. Sentence 2: He decides he needs something to keep all his books in. Sentence 3: Horatio buys a great backpack at a store. Sentence 4: Now he feels prepared for college. Choices: a. She laughed until tears rolled down her cheek. b. He is excited to start his first day at college.
Example Output: a

Example Input: Title: Music Festival. Sentence 1: My friends and I bought tickets to a music festival. Sentence 2: Before the festival, we went to John's house to have lunch. Sentence 3: We grilled chicken and drank beer. Sentence 4: After lunch, we went to the music festival. Choices: a. I ended up making a lot of new friends and I loved those art classes. b. At the festival, we danced all day!
Example Output: a

Example Input: Title: burglar. Sentence 1: The man got home. Sentence 2: He noticed the door wasn't locked. Sentence 3: He looked in the window. Sentence 4: He saw a man he didn't recognize. Choices: a. He called the police. b. He didn't go to any other magic shows any more.
Example Output:
b