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: Skateboarding Accident. Sentence 1: Tom was trying a new trick at the skate park. Sentence 2: He couldn't quite land it. Sentence 3: At one point Tom fell on his butt. Sentence 4: He wasn't hurt and everyone laughed. Choices: a. She called the fire department. b. Tom laughed as well and got back up to try again.

Ex Output:
b

Ex Input:
Title: The Crush. Sentence 1: Justin had a crush on Kate from the moment he saw her at school. Sentence 2: Kate always smiled and said hello, but Justin could only blush. Sentence 3: At the school dance, Justin saw Kate sitting quietly by herself. Sentence 4: Summoning every bit of his courage, Justin asked her to dance. Choices: a. Kate said yes. b. After that they played some duets with teacher.

Ex Output:
a

Ex Input:
Title: Straggly. Sentence 1: His hair was getting very long. Sentence 2: It hadn't been brushed in a long time. Sentence 3: It was beginning to form knots. Sentence 4: He pushed a comb through it to no avail. Choices: a. The man payed for the screen. b. We ended up cutting it off.

Ex Output:
b