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: Happy Day. Sentence 1: Gary and his wife were expecting twins. Sentence 2: Gary and his wife were going to find out the sex of the babies today. Sentence 3: Gary was anxious, yet excited to hear the sex of the baby. Sentence 4: At the sonogram, Gary found out they were having two daughters. Choices: a. Gary was filled with such joy that he would be a father of two girls. b. She hated they'd buy cigarettes instead of medicine for theirs kids.
Example Output: b

Example Input: Title: Adoption. Sentence 1: Shelly and Mark wanted a baby. Sentence 2: Unfortunately, Shelly couldn't get pregnant. Sentence 3: A friend suggested an adoption agency. Sentence 4: They signed up with the agency and went through the program. Choices: a. They now have a baby girl. b. He was disappointed with the experience.
Example Output: b

Example Input: Title: Stuck in the Mud. Sentence 1: Tyler was riding his four wheeler. Sentence 2: He was on a trail behind his house. Sentence 3: The four wheeler got stuck in the mud. Sentence 4: Tyler walked back to his house. Choices: a. When the jury found Phil not guilty, Doug wasn't sure it was true. b. He asked his dad to help him out.
Example Output:
a