TASK DEFINITION: In this task, you're given the title and three arbitrary sentences out of a five-sentence story. You are also given three additional sentence options, a, b, and c, that may or may not belong to the story. Your job is to pick the two options that seamlessly connect with the rest of the story and their positions in the sentence order of the story; note that the selected choices may fit into the story at any point. Your answer must be in the form of '2a, 5b', where '2a' means the candidate sentence 'a' will be inserted as the 2nd sentence in the story. The answer must also be in the order of the selected choices, i.e., '2a, 5b' is allowed, and '5b, 2a' is not allowed. If options are equally plausible, pick the ones that make more sense.
PROBLEM: Title: Tim started yoga to get more flexible. He didn't realize which class he signed up for. He didn't return to that class. Choices: a. Tim accidentally picked the advanced one. b. He tried stretching too hard and hurt himself. c. Janet's interest in botany immediately faded away.

SOLUTION: 3a, 4b

PROBLEM: Title: Madeline was anxiously awaiting her baby's birth. She had tried for years to get pregnant. They rushed in the room, eager to meet the baby. Choices: a. Her due date was fast approaching. b. She loved the feeling of performing. c. When the baby was born, Madeline's whole family was there.

SOLUTION: 3a, 4c

PROBLEM: Title: Jason walked towards the catcher. He threw the ball at Jason. It didn't hit the ball and it landed on the ground. Choices: a. The puppets were her favorite toy every time she visited the library. b. Instead of hitting the ball, Jason threw the bat. c. The pitcher got into his stance.

SOLUTION:
4b, 2c