Definition: 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.
Input: Title: Convention. Sentence 1: I wanted to throw a huge birthday party. Sentence 2: At this party, I wanted the theme to be board games. Sentence 3: I sent out invitations with a board game theme to all of my friends. Sentence 4: Everyone showed up and we played board games all day. Choices: a. I learned that my birthday should be a yearly games convention. b. I thought it would be fun to climb it.
Output:
b