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: Hiking. Sentence 1: Eric was planning to go solo hiking today. Sentence 2: He packed snacks and a lot of water the night before. Sentence 3: In the morning he headed out very early because the drive was long. Sentence 4: He gets there and there was already a ton of people. Choices: a. He ends up meeting a friend there and they hike together. b. I filled it up before I returned it so it would not happen to her too.

Output: a

Input: Consider Input: Title: Pinata. Sentence 1: At morgan's birthday party, we set up a pinata. Sentence 2: The first girl to swing does not break the pinata. Sentence 3: The next boy hits one of the legs off the pinata. Sentence 4: Morgan takes one big swing and the pinata explodes. Choices: a. All the kids collect their chocolaty goodies. b. He thought that he might visit there again someday.

Output: a

Input: Consider Input: Title: shark. Sentence 1: I loved swimming at the beach. Sentence 2: One day I saw a big shark. Sentence 3: The shark suddenly attacked me. Sentence 4: I lost my left hand. Choices: a. Now the flower has bloomed. b. I never went back to the beach ever since.
Output: b