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: Consider Input: Title: The Ghost. Sentence 1: I use to ride my horses down along the river near our house. Sentence 2: One early morning as I was riding I saw a man standing near a tree. Sentence 3: He was dressed in old clothes from some time ago. Sentence 4: As I rode closer he stepped behind the tree. Choices: a. I bought a Ladoo and ate it. b. When I got to the tree I could see he wasn't there, he was a ghost.

Output: a

Input: Consider Input: Title: Flag. Sentence 1: The man went to hang the flag. Sentence 2: The flag touched the ground. Sentence 3: He thought he should burn the flag. Sentence 4: He asked his boss if he should burn it. Choices: a. He didn't return to that class. b. His boss told him just to hang the flag.

Output: a

Input: Consider Input: Title: New pant. Sentence 1: Fred needed some new pants. Sentence 2: His current ones ripped. Sentence 3: So he went to the mall. Sentence 4: When he got there he saw there was a sale. Choices: a. She broke up with him because he had done this before. b. So he got pants for half off.
Output: a