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: Dooly. Sentence 1: Dooly was the name of her new dolly. Sentence 2: She carried him around everywhere she went. Sentence 3: She even started sleeping with him at night. Sentence 4: He was her new best friend. Choices: a. There was heavy traffic to due to the Head of the Charles Regatta. b. She gave him up a few years later for a new doll.

Ex Output:
b

Ex Input:
Title: Fries. Sentence 1: Nico had a big craving for french fries! Sentence 2: But she had no money and her mom had none to borrow her. Sentence 3: Then her mom smiled and said not to worry - Nico would get her fries! Sentence 4: As Nico watched, her mom grated and oil-fried potatoes. Choices: a. She loved playing in the ice. b. The homemade fries were even better than Nico had thought!

Ex Output:
b

Ex Input:
Title: Ouch. Sentence 1: Lilly's grandmother kept some cacti in pots on the kitchen windowsill. Sentence 2: Lily thought she heard a noise outside so she ran to the window. Sentence 3: As she bent to look out her face brushed up against one of the cacti. Sentence 4: She gasped as some of the prickles hit and embedded into her face. Choices: a. Her grandmother spent half an hour removing them with tweezers. b. The coins he had were chocolate covered in gold foil.

Ex Output:
a