Instructions: 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: Footprints. Sentence 1: Roger Rumface had been following the footprints in the snow. Sentence 2: He was nearly frostbitten. Sentence 3: Suddenly he realized the footprints had ended in the middle of a field. Sentence 4: There were no others. Choices: a. If only Roger had realized they were the prints of a bird. b. We finally sat under huge beautiful tree and all had a wonderful time!
Output:
b