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: Samich. Sentence 1: Lucy sat down, crying. Sentence 2: She was eating a very delicious bacon sandwich. Sentence 3: Sandwiches like this always brought back sweet memories. Sentence 4: She was transported back into the past. Choices: a. Tom was too embarrassed to ask. b. She was a little girl again watching her father slaughter pigs.

Ex Output:
a

Ex Input:
Title: Jack Went Rollerskating. Sentence 1: Jack wanted to rollerskate. Sentence 2: He did not have any skates. Sentence 3: Jack asked his brother Sam if he could borrow his. Sentence 4: Sam agreed to lend Jack his skates. Choices: a. Jack had a great time rollerskating with his friends. b. Freddie decided to just wear wigs instead.

Ex Output:
b

Ex Input:
Title: The Old House. Sentence 1: Dan and his wife and just bought a house. Sentence 2: They knew it needed work. Sentence 3: They began working hard every day on it. Sentence 4: Finally the house was ready. Choices: a. It was not done that well. b. They were so happy.

Ex Output:
a