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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Ex Input:
Title: Talker. Sentence 1: Harry is a 78 year old retired professor who lives in the building. Sentence 2: He is very lonely and tries to talk to people. Sentence 3: A new concierge just came on last week. Sentence 4: Harry talked to him for 2 hours. Choices: a. Because of his fact acting, he saved more than half this of his crops. b. The concierge finally told Harry he was busy.

Ex Output:
b

Ex Input:
Title: Tragedy strikes. Sentence 1: One day Keith was playing with his son Bryson. Sentence 2: He heard a loud noise bang from inside the house. Sentence 3: He went to check on his wife lyndie. Sentence 4: It was too late. Choices: a. Lyndie had been crushed by the family dresser. b. This was at a wedding.

Ex Output:
a

Ex Input:
Title: Bad Karma. Sentence 1: Mike had been anticipating the Dub Show car show all year. Sentence 2: A week before the show Mike put on Facebook the show would be special. Sentence 3: Two reporters made appointments to interview Mike at the show. Sentence 4: A day before the show Mike crashed into the back of another car. Choices: a. The interview took less than a minute and now weed is legal for Daryl. b. He cursed on facebook he crashed his car and many people were sad.

Ex Output:
b