Input: Red
Red was also a badge of rank. During the Song dynasty (906–1279), officials of the top three ranks wore purple clothes; those of the fourth and fifth wore bright red; those of the sixth and seventh wore green; and the eighth and ninth wore blue. Red was the color worn by the royal guards of honor, and the color of the carriages of the imperial family. When the imperial family traveled, their servants and accompanying officials carried red and purple umbrellas. Of an official who had talent and ambition, it was said "he is so red he becomes purple."

Which number of ranks wore purple clothing in the Song dynasty?
Output: three


Input: Article: Countering Krugman, Peter J. Wallison wrote: "It is not true that every bubble—even a large bubble—has the potential to cause a financial crisis when it deflates." Wallison notes that other developed countries had "large bubbles during the 1997–2007 period" but "the losses associated with mortgage delinquencies and defaults when these bubbles deflated were far lower than the losses suffered in the United States when the 1997–2007 [bubble] deflated." According to Wallison, the reason the U.S. residential housing bubble (as opposed to other types of bubbles) led to financial crisis was that it was supported by a huge number of substandard loans – generally with low or no downpayments.

Now answer this question: Other countries had large residential housing bubbles that deflated during what years?

Output: 1997–2007


Article: The Late Middle Ages was marked by difficulties and calamities including famine, plague, and war, which significantly diminished the population of Europe; between 1347 and 1350, the Black Death killed about a third of Europeans. Controversy, heresy, and schism within the Church paralleled the interstate conflict, civil strife, and peasant revolts that occurred in the kingdoms. Cultural and technological developments transformed European society, concluding the Late Middle Ages and beginning the early modern period.

Question: What era occurred after the Late Middle Ages?
Ans: the early modern period


Here is a question about this article: The Atlantic coast of the United States is low, with minor exceptions. The Appalachian Highland owes its oblique northeast-southwest trend to crustal deformations which in very early geological time gave a beginning to what later came to be the Appalachian mountain system. This system had its climax of deformation so long ago (probably in Permian time) that it has since then been very generally reduced to moderate or low relief. It owes its present-day altitude either to renewed elevations along the earlier lines or to the survival of the most resistant rocks as residual mountains. The oblique trend of this coast would be even more pronounced but for a comparatively modern crustal movement, causing a depression in the northeast resulting in an encroachment of the sea upon the land. Additionally, the southeastern section has undergone an elevation resulting in the advance of the land upon the sea.
What is the answer to this question: Why does the Appalachian Highland have the terrain it does?
****
So... crustal deformations


The problem: Answer a question about this article:
Formed in 1878, Everton were founding members of The Football League in 1888 and won their first league championship two seasons later. Following four league titles and two FA Cup wins, Everton experienced a lull in the immediate post World War Two period until a revival in the 1960s which saw the club win two league championships and an FA Cup. The mid-1980s represented their most recent period of sustained success, with two League Championship successes, an FA Cup, and the 1985 European Cup Winners' Cup. The club's most recent major trophy was the 1995 FA Cup. The club's supporters are known as Evertonians.
How many league championships did Everton win in the 1960s?
****
The answer: two


The problem: Answer a question about this article:
The other usage refers to a language that is socially subordinated to a regional or national standard language, often historically cognate or related to the standard language, but not actually derived from it. In this sense, unlike in the first usage, the standard language would not itself be considered a "dialect," as it is the dominant language in a particular state or region, whether in terms of social or political status, official status, predominance or prevalence, or all of the above. Meanwhile, the "dialects" subordinate to the standard language are generally not variations on the standard language but rather separate (but often related) languages in and of themselves. For example, most of the various regional Romance languages of Italy, often colloquially referred to as Italian "dialects," are, in fact, not actually derived from modern standard Italian, but rather evolved from Vulgar Latin separately and individually from one another and independently of standard Italian, long prior to the diffusion of a national standardized language throughout what is now Italy. These various Latin-derived regional languages are therefore, in a linguistic sense, not truly "dialects" of the standard Italian language, but are instead better defined as their own separate languages. Conversely, with the spread of standard Italian throughout Italy in the 20th century, various regional versions or varieties of standard Italian developed, generally as a mix of the national standard Italian with local regional languages and local accents. These variations on standard Italian, known as regional Italian, would more appropriately be called "dialects" in accordance with the first linguistic definition of "dialect," as they are in fact derived partially or mostly from standard Italian. 
From what language did the regional Romance languages of Italy derive?
****
The answer:
Latin