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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Ex Input:
Title: Daniel wins big. Sentence 1: Daniel is driving home from work. Sentence 2: He pulls over and gets some gas. Sentence 3: He buys a lottery ticket. Sentence 4: Daniel goes back home. Choices: a. The next day he realizes he has won the whole jackpot. b. We never rebuilt a repertoire of any sort.

Ex Output:
a

Ex Input:
Title: Armpit. Sentence 1: Dan was having a hard time keeping his pen out of his mouth. Sentence 2: He had a habit of chewing on the cap as he worked. Sentence 3: Dan's dentist told him he needed to stop this habit. Sentence 4: He rubbed his pen in his armpits to make it too nasty to chew on. Choices: a. Dan was dismayed when it didn't help. b. Tim and Jerry's parents activated the parental controls on their TV.

Ex Output:
a

Ex Input:
Title: newspaper. Sentence 1: John joined his newspaper school club. Sentence 2: John wrote several articles. Sentence 3: John gained recognition. Sentence 4: John received an award in his graduation. Choices: a. She went to turn off the beans and threw them away. b. John also received job offers from real newspapers.

Ex Output:
b