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.

Ex Input:
Title: The Gymnast. Sentence 1: Liv wanted to be an Olympic gymnast. Sentence 2: She trained every day after school. Sentence 3: Unfortunately, she was injured in a car accident. Sentence 4: She had to undertake months of physical therapy to heal her ankle. Choices: a. Eventually, she was back to practicing gymnastics. b. Luckily, the phone was still covered under warranty.

Ex Output:
b

Ex Input:
Title: donation. Sentence 1: The man asked for donations. Sentence 2: Everybody ignored him. Sentence 3: The man told his friend. Sentence 4: His friend suggested a strategy. Choices: a. In the end, I decided to try the new brand because of the discount. b. The man got donations with the new strategy.

Ex Output:
a

Ex Input:
Title: Tv Show. Sentence 1: Charlie was on a TV show. Sentence 2: He started to party a lot. Sentence 3: His boss asked him to cut back. Sentence 4: Until he cleaned up his act, the show was put on hold. Choices: a. Bobby got a sunburn. b. But it went back on air.

Ex Output:
a