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: Calling. Sentence 1: Jerry had a close friend he missed. Sentence 2: They had not spoken in years. Sentence 3: Jerry called his friend. Sentence 4: They reconnected. Choices: a. Jerry was happy to talk to his old friend. b. When she came back it was gone!

Ex Output:
b

Ex Input:
Title: Tree Surprise. Sentence 1: One day, my brother and I went for a walk in the woods. Sentence 2: We heard a mewing sound behind one of the trees. Sentence 3: We investigated and found a kitten there. Sentence 4: The kitten was starving so we took it home to feed it. Choices: a. We decided to keep the kitten as a pet. b. It had been a great adventure.

Ex Output:
b

Ex Input:
Title: Blue Feet. Sentence 1: Jennifer was painting her toe nails. Sentence 2: She spilled the polish all over her foot. Sentence 3: It didn't wash out. Sentence 4: The kids at school called her blue feet. Choices: a. She didn't mind the word and started a new fashion trend. b. I bought a water bottle.

Ex Output:
b