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: A boy becomes a magician. Sentence 1: A little boy always dreamed of becoming a magician. Sentence 2: So the little boy went to the local library and got books on magic. Sentence 3: The little boy studied the books on magic day and night. Sentence 4: The little boy began to practice doing magic tricks in his bedroom. Choices: a. All the boys in class would then yell "Erica Miss America." b. The little boy finally performed in front of his friends and family.
Example Output: a

Example Input: Title: Sour Patch. Sentence 1: I had an intense craving for candy. Sentence 2: I wanted something sour. Sentence 3: I found a box of sour patch kids. Sentence 4: I sat down on the couch with some popcorn. Choices: a. We managed to fill the tires with air, luckily. b. I ate popcorn and sour patch kids while watching movies.
Example Output: a

Example Input: Title: Expensive Dresses. Sentence 1: Juliet was shopping for her prom. Sentence 2: She had gathered a few of her favorite dressed. Sentence 3: Secretly she knew which one she really wanted. Sentence 4: It was extremely pricey though, so she begged her mom. Choices: a. Luckily her mom decided that it would be okay and bought it. b. The next year she ran at Nationals.
Example Output:
b