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: The Blood Stain. Sentence 1: Brooke getting ready for a party. Sentence 2: She was cutting some fruit when she cut her finger. Sentence 3: Blood ran onto her white party dress. Sentence 4: Brooke didn't have anything else for her party. Choices: a. Luckily, a special spray she had cleared up the stain. b. An all out snow war ensued and the two stayed outside for hours.
Example Output: b

Example Input: Title: The Library book. Sentence 1: I checked out a book at the library. Sentence 2: It was a good read. Sentence 3: However, I lost the book. Sentence 4: I looked everywhere. Choices: a. I finally found it on the floor of my car. b. Everyone got to enjoy their Easter bonnets!
Example Output: b

Example Input: Title: Ken's First Day. Sentence 1: It was Ken's first day of school. Sentence 2: He put on his uniform. Sentence 3: Ken made sure he ate breakfast. Sentence 4: He picked up his bag and walked to the door. Choices: a. That's when all the work started showing up at once. b. Finally, he told his mom goodbye and walked to the bus stop.
Example Output:
a