You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").

Example Input: Paragraph- Sent 1: The Nara Period: Another of the new ideas was to set up a permanent residential capital for the imperial court, initially at Naniwa (present-day Osaka) and then a little to the east, at Nara, in 710.
Sent 2: Laid out like a chessboard (nearly half the size of China's similarly designed capital, Chang'an), Nara had its imperial palace at the northern end, with court residences, Buddhist monasteries, and Shinto shrines stretching to the south.
Sent 3: In those peaceful years, without threat of foreign invasion or civil war, there were no city ramparts.
Sent 4: The era known as the Nara Period was marked by the religious fervor of the Buddhist monks and also by their accompanying artistic achievements.
Sent 5: The Japanese were attracted more to Buddhism's ritual and art than to its complex philosophy, rendered all the more difficult because its texts were, for several centuries, available only in Chinese, the language of a small court elite.
Sent 6: Buddhist monks initiated great progress in Japanese architecture, bronze-casting, bridge-building, and sculpture.
Sent 7: To this day, historians of Chinese art find the best surviving examples of Tang-dynasty architecture among the seventh- and eighth-century temples in and around Nara.
Sent 8: By marrying his daughters to sons of the reigning emperor and then engineering timely abdications, a Fujiwara contrived always to be father-in-law, uncle, or grandfather behind the throne.
Sent 9: Very often the emperor was only a minor, so that the Fujiwara patriarch acted as regent.
Sent 10: He then persuaded the emperor to abdicate soon after his majority, and the regency would continue for the next youthful incumbent.
Sent 11: The important thing was to have the emperor's sanction for the regent's political decisions.
Sent 12: Very few emperors were reluctant to submit to Fujiwara domination.
Sent 13: The burden of his spiritual functions as high priest of Shinto and the tasks of administration led the emperor to welcome an early abdication, frequently to retire to a life of Buddhist meditation and scholarship.
Sent 14: The Fujiwara resented the Buddhist clergy's great and growing influence in imperial affairs.
Sent 15: There were too many monasteries in and around Nara.
Sent 16: It was time to move the capital.
Question: Who persuaded the emperor to abdicate soon after his majority?.
Example Output: 9, 10.

Example Input: Paragraph- Sent 1: Hundreds of thousands of years before China was to become the world's longest-running civilization, the prologue was enacted by means of the flicker of a carefully tended fire.
Sent 2: Peking Man, a forebear of Homo sapiens, achieved a mastery of fire.
Sent 3: We might call it the first Chinese invention.
Sent 4: Not that he devised flint and steel, matches, or any other way of creating fire.
Sent 5: Peking Man simply learned how to capture flame, perhaps from a forest fire, and keep it alight.
Sent 6: He thus enjoyed two revolutionary luxuries: light and heat.
Sent 7: Technologically and sociologically, it was a phenomenal breakthrough: with fire, communities could live year 'round in one cave, in which cooking and even smelting could be pursued.
Sent 8: And so, by 600,000 b.c., about 50 km (31 miles) southwest of present-day Beijing, the ancestors of mankind were ready to settle down.
Sent 9: Several hundred thousand years later, when Marco Polo reached the capital of China, he was astonished by a further development in fire technology.
Sent 10: The Chinese, he announced, used black stones dug out of mountains as fuel.
Sent 11: Europeans did not yet have a word for "coal," nor had they discovered a use for it.
Sent 12: The First Dynasty The confluence of mythology and history in China took place around 4,000 years ago during what is referred to as the Xia (Hsia) Dynasty.
Sent 13: This was still the Stone Age, but the people are thought to have made silk from thread produced by the worms they cultivated on the leaves of their mulberry trees.
Sent 14: And written language (which evolved as early as 4,500 to 5,000 years ago) was already in use, originally by oracles and then by official scribesChina's first scholars.
Sent 15: During the second of the quasi-legendary dynasties, the Shang (from about the 16th to 11th centuries b.c.), the Chinese developed an interest in art.
Sent 16: Careful geometric designs as well as dragon and bird motifs adorned bowls and implements.
Sent 17: And with the arrival of the Bronze Age, the Chinese created bronze vessels of such beauty and originality that, until modern times, archaeologists refused to believe they were cast 3,000 years ago.
Sent 18: The Shang Dynasty gave rise to the concept of one Chinese nation under one government.
Question: What new fire technology astonished Marco Polo when he reached the capital of China?.
Example Output: 9, 10.

Example Input: Paragraph- Sent 1: An archaeological party explore some caverns underground .
Sent 2: Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition , and get separated .
Sent 3: While Dr. Hughes finds an alien corpse with a fossilized diamond , Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself .
Sent 4: Two years later , Campbell and his assistant Holly are digging up the bones of Yonggary , a gargantuan dinosaur 50 times the size of a tyrannosaurus rex .
Sent 5: Out of nowhere , people slowly are being killed around the site .
Sent 6: While Holly is working Dr. Hughes , who has been legally dead for 2 years , goes to Holly and tells her to stop the dig .
Sent 7: Dr. Campbell comes into the tent and sends Dr. Hughes off .
Sent 8: Holly quits the expedition when another '' Accident '' occurs .
Sent 9: In the town bar , Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur , which he calls Yonggary , are going to bring the end of the world .
Sent 10: After explaining , Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary .
Sent 11: After Yonggary 's first appearance , the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again .
Sent 12: The army sends choppers after Yonggary , but he destroys them .
Sent 13: Yonggary is then sent to the city and does some damage , where some jets attack him .
Sent 14: Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers .
Sent 15: During the fight , Hughes and Holly find out that the diamond on Yonggary 's forehead is the device giving the aliens control of Yonggary .
Question: What did the army send to attack Yonggary prior to the jets?.
Example Output:
12, 13.