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: Blank Keycaps. Sentence 1: I purchased a high-end mechanical keyboard. Sentence 2: I thought it would be good for writing and for gaming. Sentence 3: I also ordered a nice set of blank keycaps for the board. Sentence 4: The caps made it difficult for me to type on the board. Choices: a. I ended up putting back on the stock caps, and loving the board. b. They stood up and left.

Output: a

Input: Consider Input: Title: Kitty Rescue. Sentence 1: Allison heard a meow from outside of her bedroom window. Sentence 2: Outside, she finds a kitten stuck in a tree. Sentence 3: Allison calls her neighbor, Tom, to help get the cat. Sentence 4: Tom uses his dad's ladder to climb up and rescue the kitten. Choices: a. He told Ian it wasn't aliens but only foreign spies with hand radios. b. Allison decides to keep the kitten.

Output: b

Input: Consider Input: Title: Town Fair. Sentence 1: The fair was in town and Randy was excited. Sentence 2: He took his girlfriend Sally with him. Sentence 3: One of the tents had a target practice game. Sentence 4: Randy gave it a shot. Choices: a. He won his girlfriend a giant stuffed animal. b. He celebrated with his friends, then packed up and moved to LA.
Output: a