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: My Vacation. Sentence 1: I wanted to take a cheap vacation. Sentence 2: I looked up how much it would cost to visit Paris. Sentence 3: Unfortunately it costed a year's salary. Sentence 4: I really wanted to go someplace I would enjoy. Choices: a. Later that night, the news reported a mild earthquake in the area. b. So I decided to take a vacation to my hometown.

Ex Output:
a

Ex Input:
Title: Penny candy. Sentence 1: When Tina went into the candy store she saw a lot of cheap things. Sentence 2: Many items were only a penny. Sentence 3: Tina couldn't believe it. Sentence 4: So she went and bought all she could. Choices: a. So we never went back. b. It was delicious afterwards.

Ex Output:
a

Ex Input:
Title: Dog Bite. Sentence 1: Two kids visited their friend's house. Sentence 2: His friend wasn't home. Sentence 3: A big dog was in the yard. Sentence 4: It ran over to the kids. Choices: a. It bit them right on the hands. b. Tom happily moved to accounting and found he new colleagues pleasant.

Ex Output:
b