instruction:
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 (", ").
question:
Paragraph- Sent 1: When Hope, the eagle that towered, could see No cliff beyond him in the sky, His pinions were bent droopingly-- And homeward turned his softened eye.
Sent 2: 'Twas sunset: When the sun will part There comes a sullenness of heart To him who still would look upon The glory of the summer sun.
Sent 3: That soul will hate the ev'ning mist So often lovely, and will list To the sound of the coming darkness (known To those whose spirits hearken) as one Who, in a dream of night, _would_ fly, But _cannot_, from a danger nigh.
Sent 4: What tho' the moon--tho' the white moon Shed all the splendor of her noon, _Her_ smile is chilly--and _her_ beam, In that time of dreariness, will seem (So like you gather in your breath) A portrait taken after death.
Sent 5: And boyhood is a summer sun Whose waning is the dreariest one-- For all we live to know is known, And all we seek to keep hath flown-- Let life, then, as the day-flower, fall With the noon-day beauty--which is all.
Sent 6: I reached my home--my home no more-- For all had flown who made it so.
Sent 7: I passed from out its mossy door, And, tho' my tread was soft and low, A voice came from the threshold stone Of one whom I had earlier known-- O, I defy thee, Hell, to show On beds of fire that burn below, An humbler heart--a deeper woe.
Question: Does this talk about a hopeful future or reminisce of the past?.
answer:
2, 4, 5, 6, 7.

question:
Paragraph- Sent 1: The Golden Heian Era: The geomancers in 794 decided that Heian-kyo (modern Kyoto) would be an auspicious site for the imperial family.
Sent 2: It was indeeduntil 1869.
Sent 3: Grants of tax-free land over the years had been made to Buddhist temples and members of the court aristocracy.
Sent 4: The most powerful families thus carved out for themselves whole regions that were to become the fiefdoms of Japanese feudalism.
Sent 5: By the end of the eighth century the clans had created a hierarchy of shiki, or rights, from the highest to the lowest ranks of society.
Sent 6: The aristocrat or court patron lent his prestige to a powerful provincial proprietor, who employed a competent estate-manager to oversee smallholders, who in turn worked their farms with dependent laborers.
Sent 7: This elaborate structure of interdependent rights and obligations was to serve Japanese society right into the 20th century.
Sent 8: Meanwhile, Heian court life blossomed in an effusion of aesthetic expression.
Sent 9: Princes and princesses judged the merits of birds, insects, flowers, roots, or seashells.
Sent 10: Literary party games held in ornate palace gardens required each guest to compose a small poem as his wine cup floated toward him along a miniature winding channel of water.
Sent 11: Expeditions were organized to the best viewing points for the first spring cherry blossoms, and special pavilions were built to watch the rising of the full moon.
Sent 12: Every gesture, from the most banal opening of an umbrella to the sublimest act of lovemaking, had its appropriate ceremonial.
Sent 13: Conversation often took the form of elegant exchanges of improvised verse.
Sent 14: The changing role of Chinese culture in Japanese life was epitomized in the language itself.
Sent 15: In the absence of an indigenous alphabet, Japanese scholars had with the greatest difficulty tried to adapt the complex ideograms of monosyllabic Chinese to the essentially polysyllabic Japanese.
Sent 16: Thus developed the katakana system used as a vehicle for writing Buddhist names and concepts.
Sent 17: After rival Fujiwara factions had been struggling for years to gain control of the imperial throne, they turned to the Taira and Minamoto armies in 1156 to wage the four-year war that heralded the end of the golden age of the Heian court.
Sent 18: The Taira, controlling the region along the Inland Sea, defeated the Minamoto armies based in the Kanto province east of the capital.
Question: What lead to the development of katakana system?.
answer:
15, 16.

question:
Paragraph- Sent 1: Starting from Scratch: Whoever first stepped ashore on Madeira discovered no signs of previous habitationno Stone-Age natives, as the Spanish found on the Canary Islands, and no mysterious monuments to the past, as on the Balearics.
Sent 2: Occupation of Madeira began in the early 1420s as a decidedly minimalist project: colonists arrived with only as much as they could carry from mainland Portugal.
Sent 3: They found plenty of water pouring down from the mountains, and more timber than anyone knew what to do with.
Sent 4: So they set about clearing the land for agriculture, setting fire to massive tracts of forest.
Sent 5: Legend says that a great fire burned for seven years on the island, leveling it of all its trees.
Sent 6: The fire provided the soil with a rich ash fertilizer, which complemented the luxuriant growing conditions of tropical sun and plentiful water.
Sent 7: The Portuguese saw valuable economic opportunity in their new possession and ordered Malvasia grapes from Crete and sugar cane from Italy in an effort to seed the island's first cash crops.
Sent 8: The project was not a simple one.
Sent 9: Colonists had to locate enough level ground to grow crops on and solve the issue of irrigating them.
Sent 10: Brute strength, without aid of machinery, carved flat surfaces out of the mountains, and settlers built the terracesstill seen todayon the steep slopes.
Sent 11: The problem of watering crops was solved by the irrigation system known as levadassimply-designed water channels that wound down from water sources on the verdant mountain tops.
Sent 12: The levadas were largely built by slave laborers from Africa, whose primary employment was on sugar plantations.
Sent 13: New Madeirans traded sugar, the era's dominant luxury item, with Britain and Flanders, and they proved skillful in the art of winemaking.
Sent 14: The island's burgeoning economic significance propelled population growth, and by the middle of the 15th century Madeira was home to 800 families.
Sent 15: A 1514 census recorded 5,000 inhabitants.
Sent 16: In 1478 Madeira welcomed a visitor who would greatly assist the island's future wine trade.
Sent 17: Christopher Columbus, not yet a sailor of any renown, sailed to Madeira on an assignment to buy sugar cane.
Sent 18: His sojourn was unsuccessful, as money failed to arrive for part of the shipment.
Question: Why was it so difficult of a project for the colonist to produce their first cash crops?.
answer:
9, 10, 11.