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: Steven's Mousepad. Sentence 1: Steven needed a new mousepad. Sentence 2: All the ones in the store were too boring. Sentence 3: He couldn't even find one he liked online. Sentence 4: Steven decided he'd get a custom printed one. Choices: a. I decided to just buy violin music instead. b. He finally had a mousepad that was exactly what he wanted.

Ex Output:
a

Ex Input:
Title: ezpass. Sentence 1: Our state switched to no toll booth highways this week. Sentence 2: We had to apply for an ez pass. Sentence 3: The state had an online application. Sentence 4: The app kept bombing out. Choices: a. I ended sending my application via snail mail. b. Fred could never dive again.

Ex Output:
b

Ex Input:
Title: The Pixie Cut. Sentence 1: Kate got a new haircut. Sentence 2: She got it really short. Sentence 3: Most of her friends thought she looked cute. Sentence 4: A couple said she looked like a boy. Choices: a. Kate took the compliments more importantly. b. They had to exchange insurance information.

Ex Output:
b