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 Helicopter. Sentence 1: Natalie had never been in a helicopter before. Sentence 2: She decided to take a ride while on vacation. Sentence 3: The helicopter took her over waterfalls and mountains. Sentence 4: It was an amazing way to see the scenery! Choices: a. Natalie was happy that she had finally experienced a helicopter. b. The put candles inside and lit them.

Ex Output:
b

Ex Input:
Title: Rita burns the beans. Sentence 1: Rita is cooking. Sentence 2: Rita gets company while cooking. Sentence 3: She loses track of the time. Sentence 4: She let the beans burn on the stove. Choices: a. In the end he had to spend a bunch of money to fix his own mistakes. b. She went to turn off the beans and threw them away.

Ex Output:
a

Ex Input:
Title: Bubbling Soup. Sentence 1: Dinah was cooking soup for supper. Sentence 2: She left the soup cooking on the stove on high. Sentence 3: The soup began to bubble over the pot. Sentence 4: Dinah returned and noticed the soup had boiled over. Choices: a. Carole signed up for service with another provider. b. Dinah turned off the heat and cleaned up the stove.

Ex Output:
a