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: Carlton is rejected. Sentence 1: Carlton has a crush on a girl from school. Sentence 2: For months he has been thinking of asking her out. Sentence 3: The day comes and he asks her out. Sentence 4: The girl tells him no. Choices: a. Ken got in trouble for not showing up. b. Carlton is crushed on goes home crying.

Ex Output:
a

Ex Input:
Title: Bruised. Sentence 1: Anna was playing football in gym at school. Sentence 2: She tossed the ball to her teammate. Sentence 3: But he didn't catch it - it caught him! Sentence 4: It hit him on the cheek. Choices: a. Anna was proud of her ingenuity! b. He ended up with a big purple bruise!

Ex Output:
a

Ex Input:
Title: Burning Down. Sentence 1: Tom opened up a new business. Sentence 2: It was a book store. Sentence 3: It wasn't doing very good for a while. Sentence 4: One night it accidentally burned down. Choices: a. Tom made money from the insurance. b. The only people who won were the spectators when they both passed out.

Ex Output:
b