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.

Ex Input:
Title: Fire Hazard. Sentence 1: Sam's girlfriend was a hoarder. Sentence 2: He kept trying to get her to get rid of stuff. Sentence 3: ONe day there was a fire. Sentence 4: All her stuff burned up fast. Choices: a. Sam felt bittersweet about it. b. I drank half the bottle by myself.

Ex Output:
b

Ex Input:
Title: Lucky Pizza. Sentence 1: Ruth was at the bar after her game the other night. Sentence 2: Usually, there is free pizza set out for the teams. Sentence 3: However, this time all of the boxes were empty! Sentence 4: Ruth started contemplating going somewhere else for food. Choices: a. At the last second, they brought out more pizza! b. Ted quickly discovered that his headaches went away.

Ex Output:
b

Ex Input:
Title: The Failing Exam. Sentence 1: Aaron was a high school teacher. Sentence 2: He had just given an exam. Sentence 3: Aaron started to grade the exams. Sentence 4: All the the students failed the exam. Choices: a. Edith's grandmother kept the scrapbook out where everyone could see. b. Aaron assumed he didn't cover the material enough and gave a new exam.

Ex Output:
a