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 Big Gift. Sentence 1: Jane wanted a power wheels for christmas. Sentence 2: Her parents told her they couldn't afford one. Sentence 3: Jane understood and wasn't too upset. Sentence 4: Christmas morning she noticed a big box by the tree. Choices: a. The trip ended during a stunning sunset. b. Jane's parents surprised her with the gift she wanted.

Ex Output:
a

Ex Input:
Title: Tires. Sentence 1: On Sunday my wife went food shopping. Sentence 2: When she got to the car she saw the low tire pressure light. Sentence 3: She called me and I went down to get a pump. Sentence 4: I am disabled and have trouble walking and bending over. Choices: a. But thankfully she made 100% immediately. b. We managed to fill the tires with air, luckily.

Ex Output:
a

Ex Input:
Title: tryouts. Sentence 1: John was ready for the tryouts to join his high school teams. Sentence 2: He wanted to be a infielder. Sentence 3: He worked out with the other kids. Sentence 4: After the tryouts John had to wait two days to see if he made it. Choices: a. He checked and saw he made it. b. James decided he needed to read more books.

Ex Output:
b