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 onion plant.. Sentence 1: Louise wanted to learn to grow onions. Sentence 2: It required many steps and Louise failed her first attempts. Sentence 3: Finally she got a successful plant growing. Sentence 4: She harvested the onions and hoped for the best. Choices: a. Luckily, they were delicious and juicy. b. She was very proud of their good hearts.
Example Output: b

Example Input: Title: ezpass. Sentence 1: Our state switched to no toll booth highways this week. Sentence 2: We had to apply for an ez pass. Sentence 3: The state had an online application. Sentence 4: The app kept bombing out. Choices: a. I ended sending my application via snail mail. b. Fred could never dive again.
Example Output: b

Example Input: Title: Broken Mirror. Sentence 1: Tom was walking in his apartment at night. Sentence 2: He didn't bother to turn on the lights. Sentence 3: He tripped and fell into a mirror. Sentence 4: The glass broke and Tom cut himself. Choices: a. Tom realized it but didn't care. b. It was pretty bad and he bled.
Example Output:
a