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 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.

Ex Output:
a

Ex Input:
Title: New Watch. Sentence 1: Sally wanted to buy something for her hubby. Sentence 2: She went to the department store. Sentence 3: She looked around all over for something. Sentence 4: She saw a really cool watch! Choices: a. Sally bought him the new watch! b. Tom never got ringworm and credited his great hygiene.

Ex Output:
b

Ex Input:
Title: Tired. Sentence 1: Evan said he would come in on a Saturday to work overtime. Sentence 2: He dragged himself out of bed to arrive early. Sentence 3: But at work, he was very tired. Sentence 4: He was not used to working so much. Choices: a. He hardly got any work done at all! b. The entire classroom failed the quiz.

Ex Output:
b