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.

Example Input: Title: Lost Phone. Sentence 1: Eric left his phone at the coffee shop. Sentence 2: He went back to the coffee shop to look for his phone. Sentence 3: It was not on the table where he left it. Sentence 4: He asked the barista if anyone had turned in a lost phone. Choices: a. Eric was disappointed that no one had turned in his phone. b. That was one of the happiest day of my life.
Example Output: b

Example Input: Title: Ben. Sentence 1: Ben lives in Australia. Sentence 2: His mother lives in the USA. Sentence 3: The phone costs too much for them to talk much. Sentence 4: So Ben got his mother a computer. Choices: a. Now they talk over Skype once a week. b. Stephen is ready for the cozy weather.
Example Output: b

Example Input: Title: Preacher 4. Sentence 1: My great aunt was terrified of Preacher the parrot. Sentence 2: She insisted he was cursing at everyone. Sentence 3: She was hard of hearing, so she was hearing him incorrectly. Sentence 4: We all teased her about it. Choices: a. One day, even I thought he was cursing, and I stopped laughing at her. b. For the next year or so I lived with thin hair until it grew back.
Example Output:
b