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: Tumbling Down. Sentence 1: Tim was hiking up a mountain with friends. Sentence 2: He wasn't paying attention and lost his footing. Sentence 3: Tim tumbled down down for a few yards. Sentence 4: He was severely hurt. Choices: a. Tim's friends had to call for help and carry him. b. He'd meant to call his wife and yell at her instead.
Output:
b