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: New Nerd. Sentence 1: Kate made a new friend named Jan at the library. Sentence 2: They walked to the corner store to buy snacks. Sentence 3: Jan bought a can of soda as well. Sentence 4: Jan snorted when she laughed and soda came out of her nose. Choices: a. They both laughed as soda spilled out of her nose. b. Jazz had to save until he had enough.

Ex Output:
b

Ex Input:
Title: Todd and his dog. Sentence 1: After moving out on his own, Todd felt lonely. Sentence 2: Without a family or roommates, he had no one to talk to. Sentence 3: Todd headed to the humane society. Sentence 4: He found an adorable chocolate lab that needed a home. Choices: a. Todd ended his day with a new best friend! b. He complied, and Stella was overjoyed.

Ex Output:
b

Ex Input:
Title: karate. Sentence 1: Dave wanted to learn karate to defend himself from attackers. Sentence 2: He took lessons in his neighborhood dojo. Sentence 3: He learned many lessons from the person teaching. Sentence 4: He finally learned how to defend himself. Choices: a. Finally, John found a solution to get the money which was mturking. b. He also qualified to be a blackbelt master.

Ex Output:
a