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.

Ex Input:
Title: But he changed his mind and put half of the items back. And he spent twenty minutes looking for other things to buy. In the end, however, Barry decided to buy the initial six items. Choices: a. Food spilled everywhere but luckily nearby people helped her. b. And he decided on six items he would buy. c. Barry was at the grocery store.

Ex Output:
2b, 1c

Ex Input:
Title: Victor came home from work to find a wet spot on the carpet. Victor became angry and raised his voice. However, he changed his mind and decided the guilt was enough. Choices: a. The two ended up playing fetch in the backyard instead. b. When the car reached a gas station, she rushed to the restroom. c. His dog, Bubba, looked especially guilty.

Ex Output:
5a, 2c

Ex Input:
Title: The lamp was old, obviously an antique. She picked it up and observed its roundness. When she got it home, her husband hated it. Choices: a. She decided it would look perfect in her living room. b. She was considering buying it. c. She kept careful care of it daily.

Ex Output:
4a, 2b