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.

Ex Input:
Title: Bracelet. Sentence 1: My wife received an Alex and Ani bracelet as a gift. Sentence 2: She cannot wear bracelets due to a medical condition. Sentence 3: She emailed the company about an exchange. Sentence 4: They allowed her to exchange the bracelet for a necklace. Choices: a. So his father bought him a small oven and gave him a bag of steaks. b. She was pleased with the company's customer service.

Ex Output:
a

Ex Input:
Title: Ghost. Sentence 1: My wife's nephew lost his father when he was 9. Sentence 2: He was scared of death. Sentence 3: One day he was in the hallway of his building. Sentence 4: He saw a man who resembled his father. Choices: a. He ran away, thinking he had seen a ghost. b. They were able to remain friends.

Ex Output:
b

Ex Input:
Title: Dress. Sentence 1: Lily was at the mall today and didn't plan to spend any money. Sentence 2: She browsed through several stores just to waste time. Sentence 3: She entered her favorite clothing store. Sentence 4: She tried on a dress she fell in love with. Choices: a. The police were not able to recover any of the stolen items. b. She ended up buying the dress to wear to church on Sunday.

Ex Output:
a