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: Scream. Sentence 1: The coach screamed at the team. Sentence 2: That made the team feel bad. Sentence 3: The team didn't play with enough heart. Sentence 4: They lost the game. Choices: a. The coach was eventually replaced. b. Black began to look for apartments in the new city.
Example Output: b

Example Input: Title: The Speaker. Sentence 1: The school gathered in the gym. Sentence 2: They were going to listen to a speaker. Sentence 3: The speaker was going to talk about saying no to drugs. Sentence 4: The kids listened intently. Choices: a. The speaker made a big impression on them. b. Kelly had to dump Ryan because she likes the city too much.
Example Output: b

Example Input: Title: Price Adjustment. Sentence 1: Mary ordered a pair of shoes online. Sentence 2: Several days later, she noticed the price of the shoes had dropped. Sentence 3: Irritated, Mary called the online retailer to complain. Sentence 4: The polite customer service rep refunded the price difference. Choices: a. Then Timmy's dad appeared from behind a hedge and took him home. b. Mary now makes it a point to use this site whenever she needs shoes.
Example Output:
a