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: Ryan wins the award. Sentence 1: Ryan is a tv actor. Sentence 2: He is nominated for an award. Sentence 3: He arrives at the award show. Sentence 4: He wins the award at the show. Choices: a. His mother found the watch inside his backpack. b. Ryan goes home with his award.
Example Output: a

Example Input: Title: The car. Sentence 1: The teenager went to his car. Sentence 2: He got into the car. Sentence 3: The car did not start. Sentence 4: The teenager looked at the dials. Choices: a. She finally deposited the check, then moved on to the next errand. b. The car was out of gas.
Example Output: a

Example Input: Title: Out through one End. Sentence 1: Henry bought tacos late at night. Sentence 2: After he ate them, he continued to study for an exam. Sentence 3: His stomach growled for several minutes. Sentence 4: Henry became nauseous and ran to the bathroom. Choices: a. Inside was two broken red pens. b. He had to throw up.
Example Output:
a