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: Seaside. Sentence 1: Shelly and Mike wanted to buy a house by the ocean. Sentence 2: Since they were going to retire they wanted to move. Sentence 3: They decided to move to California. Sentence 4: They met with a real estate agent to begin their hunt. Choices: a. After a few months they found the perfect house and bought it. b. Ted accidentally rear ended a SUV in front of him.

Ex Output:
a

Ex Input:
Title: Going Home. Sentence 1: The long weekend was almost over. Sentence 2: It was time to go home. Sentence 3: Tim, May, and their parents packed up their camping supplies. Sentence 4: Tim and May had so much fun over the last few days. Choices: a. Although they were sad to go home, they knew they'd return in spring. b. The reds, oranges, yellows and pinks were beautiful in the sky.

Ex Output:
a

Ex Input:
Title: A Kindergarten. Sentence 1: Dad took his son Don to the kindergarden. Sentence 2: Don did not like it there. Sentence 3: Dad got call from the kindergarten. Sentence 4: They said, Don run away. Choices: a. I had tried to take a new rout. b. They found him at home.

Ex Output:
b