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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Input: Consider Input: Title: The Washed Up Board. Sentence 1: Lisa was at the beach with a friend. Sentence 2: Lisa had brought her surfboard along. Sentence 3: Lisa's friend asked to borrow the surfboard. Sentence 4: The friend lost the surfboard in the waves. Choices: a. Isaac was happy when he finally became a professional photographer. b. The girls chased the board until it washed up on the shore.

Output: b

Input: Consider Input: Title: Magical Wand. Sentence 1: We went to Universal Studios in Orlando for vacation. Sentence 2: My wife was obsessed with Harry Potter so she wanted to really go. Sentence 3: Once we got there we decided to buy her a wand. Sentence 4: She spent the rest of the trip using the wand and saying spells. Choices: a. It was one of the most fun vacations we have ever been on. b. We try to go once in a year and have some fun.

Output: a

Input: Consider Input: Title: Bestie. Sentence 1: My best friend called this morning. Sentence 2: She told me she enrolled her kids in private school. Sentence 3: We talked for a long time about it. Sentence 4: She said she was very tired from raising kids. Choices: a. They went home together, happy as can be. b. She said she might need to go on a vacation, and I agreed.
Output: b