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: cheer her up. Sentence 1: John wanted to cheer her girlfriend up because she felt sad. Sentence 2: John asked her what she wanted. Sentence 3: She asked for a new computer. Sentence 4: John bought her a new computer. Choices: a. Luckily, a security guard reunited him with his father. b. John's girlfriend became happy again.

Output: a

Input: Consider Input: Title: Running Out of Gas. Sentence 1: Liz's fuel gauge was broken. Sentence 2: She didn't realize it at the time. Sentence 3: It wasn't until her car stopped on the side of the road. Sentence 4: The mechanic told her the problem. Choices: a. She had it fixed within a week. b. He bought it and received it within days.

Output: b

Input: Consider Input: Title: Saved. Sentence 1: Anna was at the beach playing in the water. Sentence 2: Then she went too deep and started to flail about. Sentence 3: Luckily, a lifeguard was watching. Sentence 4: He jumped in and pulled her to shore. Choices: a. And she loved to be able to look at them easily and right away. b. Anna thanked him profusely!
Output: a