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: The hurricane exhibit. Sentence 1: While on vacation, the Smith family visited a science museum. Sentence 2: Among the exhibits was the hurricane exhibit. Sentence 3: They walked through the exhibit entrance into a hurricane experience. Sentence 4: It was set up like a town with lots of wind, thunder and lightning. Choices: a. The Smiths thought this was the best exhibit they saw all day. b. Later on, she returned to the search, renewed.

Ex Output:
b

Ex Input:
Title: Pet. Sentence 1: Will decided he'd like to have a pet. Sentence 2: Will went to a local pet store. Sentence 3: He narrowed his choices down to either a lab puppy or a turtle. Sentence 4: Will decided on the puppy. Choices: a. The change had been scary, but she was so happy she had done it. b. Now, years later, Will and that lab are best friends.

Ex Output:
a

Ex Input:
Title: Laptop. Sentence 1: John needed a new laptop computer. Sentence 2: He went to his local electronics store to buy one. Sentence 3: John was stunned by the sheer selection. Sentence 4: John asked an employee which one he should get. Choices: a. The bread became the best selling bread in the country. b. He took the advice, getting a sweet Deal with the bells and whistles.

Ex Output:
a