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: Puppy. Sentence 1: Will's daughter Jen was nine years old. Sentence 2: Jen begged Will to get her a puppy. Sentence 3: Will finally relented. Sentence 4: Will told Jen to close her eyes on Christmas morning. Choices: a. By the time she got back she was exhausted. b. Jen cried with joy when Will presented her new puppy to her.

Ex Output:
a

Ex Input:
Title: Henry the Hiker. Sentence 1: Henry hiked up the local hill. Sentence 2: He passed by some people and greeted them. Sentence 3: He continued hiking but then he slipped off the hill. Sentence 4: Henry landed on a giant bush and was fine. Choices: a. Nick went into full remission. b. He got up and tried to be more careful from now on.

Ex Output:
a

Ex Input:
Title: Science Quiz. Sentence 1: Tim has a science quiz tomorrow. Sentence 2: He also has a football game. Sentence 3: Tim has not been studying. Sentence 4: When Tim went into class, he was nervous. Choices: a. She was glad to have gotten some work done. b. He didn't study and failed his quiz.

Ex Output:
a