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: A Liar. Sentence 1: Artur did not want to go to work today. Sentence 2: He was lazy. Sentence 3: He called his boss. Sentence 4: He told him he needs a sick day. Choices: a. Soon her list was ready and she headed to the store. b. His boss believed him.
Example Output: a

Example Input: Title: Cigarette punishment. Sentence 1: Ron's father told him not to start smoking. Sentence 2: Ron smoked behind his father's back anyways. Sentence 3: His father caught him. Sentence 4: He made him eat the whole pack. Choices: a. Ron never smoked again. b. I also sent a photo to the store but got no response.
Example Output: b

Example Input: Title: Eclairs. Sentence 1: My sister in-law has been overweight all her life. Sentence 2: One day she bought a box of eclairs. Sentence 3: She was a little depressed. Sentence 4: She ate the entire box of eclairs. Choices: a. With his notes, he was able to give a smooth lecture later that day. b. She got more depressed.
Example Output:
a