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: Sledding. Sentence 1: It hadn't snowed all winter. Sentence 2: Jaime hadn't had a chance to use his new red sled. Sentence 3: That's why when reports of snow came in, he was excited. Sentence 4: He took his sled out of the garage and waited. Choices: a. He walked up the hill behind his house at first snowfall. b. He triumphantly revealed his full house.
Example Output: b

Example Input: Title: First surgery. Sentence 1: Pat performed his first surgery under a lot of stress. Sentence 2: Not only was it a serious surgery but he was being watched. Sentence 3: He focused on the task at hand getting rid of distractions. Sentence 4: And when he was in a good state, he started the surgery. Choices: a. Kobe eventually played for the NBA. b. It went without a hitch and he was praised for his skills.
Example Output: a

Example Input: Title: Corners. Sentence 1: The house was filled with sharp turns and corners. Sentence 2: Every corner had someone hiding behind it. Sentence 3: They would jump out and I would scream. Sentence 4: I wanted to run from them. Choices: a. Kate was forced to spend 2 hours folding all the clothes on the couch. b. I tried to remain stoic until the end.
Example Output:
a