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.

Ex Input:
Title: Policy. Sentence 1: Tim was a CEO for his company. Sentence 2: Tim discovered there was gross inefficiency at this company. Sentence 3: Tim created a new company policy to address the inefficiency. Sentence 4: Tim ordered his employees to follow the new policy immediately. Choices: a. The policy change eradicated the efficiency in Tim's company. b. He enjoyed his homemade cheese.

Ex Output:
b

Ex Input:
Title: Lacy. Sentence 1: Lacy was walking a cemetery in the country. Sentence 2: She had got lost while navigating the huge area. Sentence 3: She decided to follow the trails to see where they would take her. Sentence 4: After following the trails she ended up at her car. Choices: a. Todd was happy to celebrate his Irish heritage. b. She was so happy she was not lost anymore.

Ex Output:
a

Ex Input:
Title: A Trip to the Bank. Sentence 1: I set out to walk to the bank yesterday. Sentence 2: The shortest route was blocked because the road was closed. Sentence 3: I had to walk three blocks out of my way. Sentence 4: I finally arrived at the bank. Choices: a. I loved them and wore them for months. b. I discovered a more scenic route home.

Ex Output:
a