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: I put a back scratcher and a shoehorn up. I then put on a thin jacket. I am buying a nail hook tomorrow. Choices: a. I put a self adhesive hook up on the wall near my desk at home. b. After doing it many years she was very popular from it. c. The hook came tumbling down.

SOLUTION: 1a, 4c

PROBLEM: Title: Nathan wanted to take his new boat out to sail. He decided to sail it in the canal near his house. He was frightened, and turned around to head home. Choices: a. He told his that his anger was in control from now on. b. Suddenly, an alligator appeared near the boat. c. Out in the water, he relaxed on the waves.

SOLUTION: 4b, 3c

PROBLEM: Title: It created a lot of smoke. Sarah's smoke alarm went off. She had to take the battery out. Choices: a. Sarah was making dinner. b. She liked her food cooked well. c. He started meditating and it really helped him with his anxiety.

SOLUTION:
1a, 2b