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.

Example Input: Title: The Game. Sentence 1: Tim liked to play pool. Sentence 2: He challenged Sam to a game. Sentence 3: Sam agreed to the challenge. Sentence 4: He practiced every day. Choices: a. Wolf became her best friend. b. Tim lost the game to Sam.
Example Output: a

Example Input: Title: Second Thoughts. Sentence 1: Penny was mad since her boyfriend broke up with her. Sentence 2: Her mom tried to give her advice. Sentence 3: However, Penny yelled at her and went to her room. Sentence 4: She took a nap until tonight. Choices: a. Tim bought many bananas, and was happy about it. b. After feeling bad, she apologized to her mom.
Example Output: a

Example Input: Title: Ballet. Sentence 1: Lacy was dancing in the ballet. Sentence 2: She watched the crowd's admiration. Sentence 3: She got distracted and slipped and fell. Sentence 4: She broke her ankle. Choices: a. He stopped and returned to his place on the haunted trail. b. The crowd gasped in shock.
Example Output:
a