Input: Charleston, South Carolina
Charleston annually hosts Spoleto Festival USA founded by Gian Carlo Menotti, a 17-day art festival featuring over 100 performances by individual artists in a variety of disciplines. The Spoleto Festival is internationally recognized as America's premier performing arts festival. The annual Piccolo Spoleto festival takes place at the same time and features local performers and artists, with hundreds of performances throughout the city. Other festivals and events include Historic Charleston Foundation's Festival of Houses and Gardens and Charleston Antiques Show, the Taste of Charleston, The Lowcountry Oyster Festival, the Cooper River Bridge Run, The Charleston Marathon, Southeastern Wildlife Exposition (SEWE), Charleston Food and Wine Festival, Charleston Fashion Week, the MOJA Arts Festival, and the Holiday Festival of Lights (at James Island County Park), and the Charleston International Film Festival.

What kind of festival is Spoleto Festival USA?
Output: art festival

Input: Article: The phonograph disc record was the primary medium used for music reproduction until late in the 20th century, replacing the phonograph cylinder recordwith which it had co-existed from the late 1880s through to the 1920sby the late 1920s. Records retained the largest market share even when new formats such as compact cassette were mass-marketed. By the late 1980s, digital media, in the form of the compact disc, had gained a larger market share, and the vinyl record left the mainstream in 1991. From the 1990s to the 2010s, records continued to be manufactured and sold on a much smaller scale, and were especially used by disc jockeys (DJ)s, released by artists in some genres, and listened to by a niche market of audiophiles. The phonograph record has made a niche resurgence in the early 21st century 9.2 million records were sold in the U.S. in 2014, a 260% increase since 2009. Likewise, in the UK sales have increased five-fold from 2009 to 2014.

Now answer this question: From the 1990s to 2010s who was the primary consumer of vinyl records?

Output: disc jockeys (DJ)s

Article: This narrative draws on the Nidanakatha of the Jataka tales of the Theravada, which is ascribed to Buddhaghosa in the 5th century CE. Earlier biographies such as the Buddhacarita, the Lokottaravadin Mahavastu, and the Sarvastivadin Lalitavistara Sutra, give different accounts. Scholars are hesitant to make unqualified claims about the historical facts of the Buddha's life. Most accept that he lived, taught and founded a monastic order, but do not consistently accept all of the details contained in his biographies.

Question: The Jataka tales of the Theravada happened in what century?
Ans: 5th ce

Here is a question about this article: Midway through the 19th century, the focus of geology shifted from description and classification to attempts to understand how the surface of the Earth had changed. The first comprehensive theories of mountain building were proposed during this period, as were the first modern theories of earthquakes and volcanoes. Louis Agassiz and others established the reality of continent-covering ice ages, and "fluvialists" like Andrew Crombie Ramsay argued that river valleys were formed, over millions of years by the rivers that flow through them. After the discovery of radioactivity, radiometric dating methods were developed, starting in the 20th century. Alfred Wegener's theory of "continental drift" was widely dismissed when he proposed it in the 1910s, but new data gathered in the 1950s and 1960s led to the theory of plate tectonics, which provided a plausible mechanism for it. Plate tectonics also provided a unified explanation for a wide range of seemingly unrelated geological phenomena. Since 1970 it has served as the unifying principle in geology.
What is the answer to this question: What happened after radioactivity was realized?
****
So... radiometric dating methods were developed

The problem: Answer a question about this article:
The Portuguese found the island uninhabited, with an abundance of trees and fresh water. They imported livestock, fruit trees and vegetables, and built a chapel and one or two houses. Though they formed no permanent settlement, the island was an important rendezvous point and source of food for ships travelling from Asia to Europe, and frequently sick mariners were left on the island to recover, before taking passage on the next ship to call on the island.
What was imported by the settlers of the island?
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The answer: livestock, fruit trees and vegetables

The problem: Answer a question about this article:
In nature, the red color of blood comes from hemoglobin, the iron-containing protein found in the red blood cells of all vertebrates. The red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide. It also causes the red color of the planet Mars. The red sky at sunset and sunrise is caused by an optical effect known as Rayleigh scattering, which, when the sun is low or below the horizon, increases the red-wavelength light that reaches the eye. The color of autumn leaves is caused by pigments called anthocyanins, which are produced towards the end of summer, when the green chlorophyll is no longer produced. One to two percent of the human population has red hair; the color is produced by high levels of the reddish pigment pheomelanin (which also accounts for the red color of the lips) and relatively low levels of the dark pigment eumelanin.
Why does a sky turn red when the evening comes?
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The answer:
Rayleigh scattering