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: The Fix. Sentence 1: When ray opened his cabinet the knob fell off. Sentence 2: He decided to look up how to fix it. Sentence 3: He went to the store and shopped around for a new knob. Sentence 4: He finally found the right one. Choices: a. When he got home he fixed in a few hours. b. It was insufficient and he had to sleep in many layers.
Example Output: b

Example Input: Title: The Gym. Sentence 1: Sandra was nervous. Sentence 2: She just got her gym membership. Sentence 3: She walked in the door and was a bit intimidated. Sentence 4: She overcame it though and began working out. Choices: a. A decade later she became a prima ballerina. b. She felt great working out in the gym.
Example Output: a

Example Input: Title: The long stairs. Sentence 1: I decided to get some exercise. Sentence 2: I went to the tallest building in town. Sentence 3: I climbed the long set of stairs that was inside. Sentence 4: I was panting like crazy. Choices: a. I felt great when I finally made it to the top. b. I put it on the wound, sealing it from infection.
Example Output:
b