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: Family Trip. Sentence 1: Erika didn't want to go on a trip with her family. Sentence 2: She thought it was lame and boring. Sentence 3: After the first day there she started to relax. Sentence 4: By the end of it she found herself having a lot of fun. Choices: a. Hector found a dead body in the ground and calls the police. b. Erika now looks forward to their next family trip.

Ex Output:
a

Ex Input:
Title: Long walk on a hot day. Sentence 1: Jim decided to walk to the store down the road. Sentence 2: It was very hot and Jim soon began to tire. Sentence 3: Jim decided to turn around and head back home. Sentence 4: Workers doing road work saw Jim was hot and gave him water. Choices: a. Kat borrowed the dress to go to the prom. b. Jim drank the water and was able to walk back home.

Ex Output:
a

Ex Input:
Title: Story Time. Sentence 1: At night Shirley likes story time. Sentence 2: Her Daddy reads to her. Sentence 3: Shirley gets to pick the book. Sentence 4: Most nights she picks the same book. Choices: a. She just likes falling asleep to the story. b. He eventually got it replaced.

Ex Output:
b