Definition: 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.
Input: Title: Ocean. Sentence 1: It was Anna's first trip to the ocean. Sentence 2: She had only ever swum in pools before. Sentence 3: The huge beauty of the sea took her breath away! Sentence 4: But soon she plunged in and frolicked in the waves. Choices: a. Anna found the ocean amazing - and fun! b. Anna got a grade of A+!
Output:
b