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: marijuana. Sentence 1: When I was a teenager I smoked marijuana. Sentence 2: I didn't think it was going to harm me. Sentence 3: All of my friends were doing it. Sentence 4: I didn't want to feel left out. Choices: a. The shops had closed for the evening. b. However, it ended up getting me fired from my first job.
Example Output: a

Example Input: Title: Slick Willie. Sentence 1: Slick Willie is a big black cat, named for his many lucky escapes. Sentence 2: Yesterday he was on the roof when we had a sudden downpour. Sentence 3: He leaped for the tree branch that was his usual method of descent. Sentence 4: He missed! Choices: a. Fortunately, he landed in a large shrub and sauntered away unharmed. b. When Sally goes home, she always writes a thank you note for her gram.
Example Output: b

Example Input: Title: Replacing the Windows. Sentence 1: The window seal broke on my windows. Sentence 2: I contacted a window replacement service. Sentence 3: They told me how to fix the windows myself. Sentence 4: I ended up being able to fix them myself. Choices: a. Thanks to the window replacement service, I saved a lot of money. b. I think I will rest today.
Example Output:
b