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.

Example Input: Title: Painting the Room. Sentence 1: Mary wanted to paint her living room. Sentence 2: She went to the store and bought a gallon of paint. Sentence 3: Mary brought the paint home and set it in the living room. Sentence 4: She laughed as she realized she forgot the paint brushes. Choices: a. The branches ripped it apart. b. Mary went back to the store to buy the paint brushes.
Example Output: a

Example Input: Title: History Class. Sentence 1: Kenny was having trouble in his history class. Sentence 2: His teacher offered him an extra points assignment. Sentence 3: Kenny did the extra points assignment. Sentence 4: While doing the assignment, he became more interested in the subject. Choices: a. Kim was evicted from her apartment. b. Kenny slowly began to do better in history class.
Example Output: a

Example Input: Title: Tyler breaks his arm. Sentence 1: Tyler is out playing hide and seek. Sentence 2: He is looking for a place to hide. Sentence 3: He chooses a tree and climbs up to sit in it. Sentence 4: While climbing he falls down and breaks his arm. Choices: a. Jamie stayed up all night researching how to make finger sandwiches. b. His parents take him to the hospital to get a cast on it.
Example Output:
a