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.

Example Input: Title: Daisy Chain. Sentence 1: Daisy was named for the white flower with thin petals. Sentence 2: So it was only natural that she learn to make daisy chains! Sentence 3: At age 5, her mom sat her down and showed her how to link the stems. Sentence 4: Soon Daisy had the hang of it. Choices: a. Soon Randy and his son were both skipping stones on the river. b. She was making floral chains like a goddess!
Example Output: a

Example Input: Title: Going to the Park. Sentence 1: Ken went to the park to walk around. Sentence 2: He needed to clear his head. Sentence 3: The air was crisp and the mood was lazy. Sentence 4: Ken enjoyed walking on the soft grass. Choices: a. It helped him get in a better state of mind. b. She got better but never made the same mistake again.
Example Output: b

Example Input: Title: Dawson's Ranch. Sentence 1: Chad was looking for a self-storage unit. Sentence 2: He found one in his town that let him purchase a rental online. Sentence 3: Chad put in his credit card information with trust in his heart. Sentence 4: He got an email confirming his rental. Choices: a. Chad was very happy with his new storage unit. b. Jan decided to go home and change.
Example Output:
b