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.

Input: Consider Input: Title: Thirst. Sentence 1: Joe just finished running a mile. Sentence 2: And he really needed something to drink. Sentence 3: He headed towards the nearest water fountain. Sentence 4: But the water tasted odd and barely helped his thirst. Choices: a. It had been a very scary day for them. b. When he got home, he felt very weak and sick.

Output: a

Input: Consider Input: Title: The Big Gift. Sentence 1: Jane wanted a power wheels for christmas. Sentence 2: Her parents told her they couldn't afford one. Sentence 3: Jane understood and wasn't too upset. Sentence 4: Christmas morning she noticed a big box by the tree. Choices: a. The trip ended during a stunning sunset. b. Jane's parents surprised her with the gift she wanted.

Output: a

Input: Consider Input: Title: Secret Switch. Sentence 1: Kim was enjoying her french fries during lunch. Sentence 2: She asked her friend to pass her the salt. Sentence 3: The friend pretended to reach for the salt shaker. Sentence 4: Instead he grabbed the sugar shaker. Choices: a. Kim was very confused when she took a bit once putting sugar on. b. Now I'm totally fine with spiders.
Output: b