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: Walk. Sentence 1: Jim took a walk out late one night. Sentence 2: He saw police activity ahead but didn't worry. Sentence 3: Then a police truck pulled up next to him and he began to worry. Sentence 4: The policeman advised him to walk around the area safely. Choices: a. Jim thanked the nice officer and they moved on. b. Liam conceded defeat and both friends went to drink a beer.
Output:
b