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 Museum. Sentence 1: Brenda loved learning. Sentence 2: She went to a new museum to learn about history. Sentence 3: The exhibits were great! Sentence 4: She especially loved learning about the Civil War. Choices: a. Brenda felt smarter after her visit. b. When they came back Roy's parents were happy with the clean house.
Example Output: b

Example Input: Title: Tree. Sentence 1: Carl was tasked with finding his family's Christmas tree. Sentence 2: He was fifteen and he felt very manly and important. Sentence 3: But after a night of searching, no tree seemed perfect enough. Sentence 4: He went and bought an artificial tree at the store. Choices: a. Carl's family loved his fake tree just as much as any real tree! b. Glen decided she wasn't so bad afterall.
Example Output: b

Example Input: Title: Dirty Rug. Sentence 1: Ken was tired from work one day. Sentence 2: He got home and immediately laid on the floor. Sentence 3: He soon realized how dirty his rug was. Sentence 4: Instead of relaxing Ken felt the need to vacuum. Choices: a. He did it and then went back to laying down. b. I got a partial scholarship to college because of our accomplishments.
Example Output:
b