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: Horatio Buys A Backpack. Sentence 1: Horatio is enrolling in college next fall. Sentence 2: He decides he needs something to keep all his books in. Sentence 3: Horatio buys a great backpack at a store. Sentence 4: Now he feels prepared for college. Choices: a. She laughed until tears rolled down her cheek. b. He is excited to start his first day at college.

Ex Output:
a

Ex Input:
Title: Dry. Sentence 1: Anna's hair was very dry. Sentence 2: She bought a leave-in conditioner. Sentence 3: She started using it every week. Sentence 4: Soon she noticed a difference. Choices: a. But in the morning, she regretted her decision! b. Her hair was much healthier!

Ex Output:
a

Ex Input:
Title: Switching Jobs. Sentence 1: Barb was a manager at a retail store. Sentence 2: They job paid well but she had to work every single holiday. Sentence 3: She applied for a manager position at a non retail company. Sentence 4: She interviewed and got the job, with a pay increase! Choices: a. Now Barb makes more and gets all holidays off to be with her family. b. By the end of the semester Jose had tons of artwork in his dorm.

Ex Output:
b