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: Two kids visited their friend's house. His friend wasn't home. It bit them right on the hands. Choices: a. A big dog was in the yard. b. It ran over to the kids. c. Tom happily moved to accounting and found he new colleagues pleasant.

Ex Output:
3a, 4b


Ex Input:
Title: Jane was never very flexible. She decided to change that. Eventually she became more flexible. Choices: a. During her lunch break, she took a nap. b. Jane started doing yoga. c. It was slow and hard.

Ex Output:
3b, 4c


Ex Input:
Title: She tried hitting the water guns for fun. Ultimately she won a bear for him. She was so happy. Choices: a. I plan on trying them all. b. Allie went to the fair with her family. c. She wanted to win something for her brother.

Ex Output:

1b, 3c


