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: Painted Bat. Sentence 1: Andrew painted his sons bat. Sentence 2: His son swung it at a ball. Sentence 3: The paint cracked where the ball hit. Sentence 4: Andrew tried a different paint. Choices: a. His golf swing improved with that advice. b. The son asked for an unpainted bat.

Ex Output:
a

Ex Input:
Title: The Pill. Sentence 1: Sarah's didn't want children but her husband, Bill, did. Sentence 2: She secretly got a prescription of birth control pills. Sentence 3: One day, Bill found the pills and was furious. Sentence 4: After they were argued, Sarah felt really ill. Choices: a. Two days later, Sarah discovered she was pregnant. b. She was sad because the cookie was a whopping 490 calories.

Ex Output:
b

Ex Input:
Title: Teens and Alcohol. Sentence 1: Andrea was in math class sipping from a water bottle. Sentence 2: What her teacher didn't know was that the water was actually alcohol. Sentence 3: Andrea was super drunk for the entire day. Sentence 4: When she finally sobered up the day was over already. Choices: a. Andrea vowed to stop getting drunk in school. b. Their mom knew to check there first.

Ex Output:
b