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: Long walk on a hot day. Sentence 1: Jim decided to walk to the store down the road. Sentence 2: It was very hot and Jim soon began to tire. Sentence 3: Jim decided to turn around and head back home. Sentence 4: Workers doing road work saw Jim was hot and gave him water. Choices: a. Kat borrowed the dress to go to the prom. b. Jim drank the water and was able to walk back home.
Example Output: a

Example Input: Title: Research. Sentence 1: I'm writing a play about a folk musician. Sentence 2: I want to read a biography about him to get started. Sentence 3: There are two extant biographies of his life. Sentence 4: I went to the local branch of the library. Choices: a. Kia felt a tiny bit better hearing the wonderful news. b. They have copies of both, at another branch.
Example Output: a

Example Input: Title: Audience. Sentence 1: Anna had alway wanted to be on TV. Sentence 2: But she wasn't pretty or even funny! Sentence 3: Then she got guest seats on Jeopardy! Sentence 4: Anna got to be on TV after all! Choices: a. She did that chore first to get it out of her way quickly! b. She had a great time in the audience.
Example Output:
a