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.

Input: Consider Input: Title: Ice Cream Crazy. Sentence 1: I have always absolutely loved ice cream. Sentence 2: For my birthday one year, my mom bought me an icecream machine. Sentence 3: My roommate and I decided to make ice cream together and were excited. Sentence 4: We froze the canister, mixed the ingredients, and let them churn. Choices: a. His parents had to explain reality to him. b. We waited and waited and to our dismay we never got ice cream.

Output: a

Input: Consider 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.

Output: b

Input: Consider Input: Title: BC. Sentence 1: Our two year old granddaughter came to Boston last weekend. Sentence 2: Her mother and father went to visit Boston College. Sentence 3: They went to school there in 2003-2007. Sentence 4: They bought her a BC t-shirt. Choices: a. She looked cute in it. b. Now Joe lives in Keine's house, with Keine's ex-wife.
Output: b