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: Family Reunion. Sentence 1: The Nelson family held a reunion. Sentence 2: They all wore name tags handed out at the start. Sentence 3: They ate a large barbecue meal. Sentence 4: While eating, they got into a large fight about politics. Choices: a. That was the last Nelson family reunion. b. He grimaced in pain as he reached the peak.

Ex Output:
b

Ex Input:
Title: The Flu Shot. Sentence 1: The woman didn't want to catch the flu. Sentence 2: She got a flu shot from her doctor. Sentence 3: She hoped it would keep her healthy all winter. Sentence 4: In January, her body started aching. Choices: a. She had caught the flu anyway! b. Then Charles realized he'd forgotten his gun!

Ex Output:
b

Ex Input:
Title: Tennis Lesson. Sentence 1: Shelle loved to play tennis. Sentence 2: However her backhand was horrible. Sentence 3: She decided to start taking lessons to work on it. Sentence 4: She started getting better and better. Choices: a. John found someone who playing the game and became friends with him. b. Eventually she had the best back hand on her team.

Ex Output:
a