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: Worst Day. Sentence 1: Rachel's day couldn't get any worse. Sentence 2: She locked herself out of her car while she was at the beach. Sentence 3: She trudge down the boardwalk to find a payphone. Sentence 4: On the way, her flip-flop snagged a rock and ripped. Choices: a. He found his harness outside his front door on his way out. b. Rachel groaned as she hobbled along.

Ex Output:
a

Ex Input:
Title: Lemonade Stand. Sentence 1: When I was a child I lived in a neighborhood with many kids. Sentence 2: Every summer we would set up a Lemonade stand. Sentence 3: We would sale lemonade all day then split the money. Sentence 4: Then we would ride our bikes two miles down to the store. Choices: a. At the store we would use the money to buy candy and rent movies. b. I said DD was going upscale.

Ex Output:
b

Ex Input:
Title: Phone. Sentence 1: Gibson wanted a new cellphone. Sentence 2: He had broken his previous one. Sentence 3: His dad said he would not buy him a new one. Sentence 4: Gibson begged for many days. Choices: a. After many months, his dad finally bought him a new phone. b. Finally, after many hours, Brian was able to spot a cougar.

Ex Output:
b