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 Love Letter. Sentence 1: Kevin was playing a joke on his sister. Sentence 2: He wrote a love letter and signed it from her crush. Sentence 3: Kevin slipped the note in her backpack. Sentence 4: His sister read the note. Choices: a. She recognized Kevin's handwriting and was mad at him. b. She made Kennedy help her clean the dresser.

Output: a

Input: Consider Input: Title: Pinball. Sentence 1: The boys loved playing video games. Sentence 2: They went to an arcade to play pinball. Sentence 3: It was different from their high-tech games. Sentence 4: But they had a lot of fun. Choices: a. Now, Joe is not scared of cats. b. They decided pinball was their new favorite!

Output: b

Input: Consider Input: Title: Climbing. Sentence 1: Today I climbed a tree. Sentence 2: I grabbed the lowest branch. Sentence 3: I tried to pull myself up. Sentence 4: I had a lot of trouble getting up in the tree. Choices: a. I made it onto the first branch. b. She substituted in a bit of her very favorites from her stash.
Output: a