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: Lost Phone. Sentence 1: Eric left his phone at the coffee shop. Sentence 2: He went back to the coffee shop to look for his phone. Sentence 3: It was not on the table where he left it. Sentence 4: He asked the barista if anyone had turned in a lost phone. Choices: a. Eric was disappointed that no one had turned in his phone. b. That was one of the happiest day of my life.

Ex Output:
b

Ex Input:
Title: Herb and his Wife. Sentence 1: Herb and his wife were talking one day. Sentence 2: He asked her what she thinks heaven is like. Sentence 3: She told him that she didn't believe in heaven. Sentence 4: This made Herb very upset. Choices: a. Even though they waited, they never got to play on the swings. b. Eventually they learned to live with their differences.

Ex Output:
a

Ex Input:
Title: Almost Walking the Cat. Sentence 1: Ed decided he was going to take the family cat for a walk. Sentence 2: He got a special leash for her to keep her safe. Sentence 3: He attached it and she immediately went limp. Sentence 4: He carried her outside and put her down. Choices: a. He couldn't get her to move an inch! b. Both girls healed and were healthy again in no time!

Ex Output:
b