The problem: Answer a question about this article:
In ancient times, the trading and colonizing activities of the Greek tribes and city states spread the Greek culture, religion and language around the Mediterranean and Black Sea basins, especially in Sicily and southern Italy (also known as Magna Grecia), Spain, the south of France and the Black sea coasts. Under Alexander the Great's empire and successor states, Greek and Hellenizing ruling classes were established in the Middle East, India and in Egypt. The Hellenistic period is characterized by a new wave of Greek colonization that established Greek cities and kingdoms in Asia and Africa. Under the Roman Empire, easier movement of people spread Greeks across the Empire and in the eastern territories, Greek became the lingua franca rather than Latin. The modern-day Griko community of southern Italy, numbering about 60,000, may represent a living remnant of the ancient Greek populations of Italy.
What period marked the expansion of Greek thinking and expression ?
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The answer: The Hellenistic period

Problem: Please answer a question about the following article about Nanjing:
Located in Yangtze River Delta area and the center of East China, Nanjing is home to one of the world's largest inland ports. Nanjing is also one of the fifteen sub-provincial cities in the People's Republic of China's administrative structure, enjoying jurisdictional and economic autonomy only slightly less than that of a province. Nanjing has been ranked seventh in the evaluation of "Cities with Strongest Comprehensive Strength" issued by the National Statistics Bureau, and second in the evaluation of cities with most sustainable development potential in the Yangtze River Delta. It has also been awarded the title of 2008 Habitat Scroll of Honour of China, Special UN Habitat Scroll of Honour Award and National Civilized City. Nanjing boasts many high-quality universities and research institutes, with the number of universities listed in 100 National Key Universities ranking third, including Nanjing University. The ratio of college students to total population ranks No.1 among large cities nationwide. Nanjing is one of the three Chinese top research centres according to Nature Index.
What part of China (North, East, South, West) is Nanjing located?
A: East

Question: Read this and answer the question

The FA permitted artificial turf (3G) pitches in all rounds of the competition from the 201415 edition and beyond. Under the 2015-16 rules, the pitch must be of FIFA One Star quality, or Two Star for ties if they involve one of the 92 professional clubs. This followed approval two years previously for their use in the qualifying rounds only - if a team with a 3G pitch progressed to the competition proper, they had to switch their tie to the ground of another eligible entrant with a natural grass pitch. Having been strong proponents of the surface, the first match in the proper rounds to be played on a 3G surface was a televised first round replay at Maidstone United's Gallagher Stadium on 20 November 2015.

What happens if the pitch is not up to par?
Answer: they had to switch their tie to the ground of another eligible entrant with a natural grass pitch.

Problem: Modern Greek has, in addition to Standard Modern Greek or Dimotiki, a wide variety of dialects of varying levels of mutual intelligibility, including Cypriot, Pontic, Cappadocian, Griko and Tsakonian (the only surviving representative of ancient Doric Greek). Yevanic is the language of the Romaniotes, and survives in small communities in Greece, New York and Israel. In addition to Greek, many Greeks in Greece and the Diaspora are bilingual in other languages or dialects such as English, Arvanitika/Albanian, Aromanian, Macedonian Slavic, Russian and Turkish.
Do the people of Greek ascendancy only speak Grecian languages ?
The answer is the following: bilingual in other languages or dialects such as English, Arvanitika/Albanian, Aromanian, Macedonian Slavic, Russian and Turkish.

Over 600,000 students are enrolled in New York City's over 120 higher education institutions, the highest number of any city in the United States, including over half million in the City University of New York (CUNY) system alone in 2014. In 2005, three out of five Manhattan residents were college graduates, and one out of four had a postgraduate degree, forming one of the highest concentrations of highly educated people in any American city. New York City is home to such notable private universities as Barnard College, Columbia University, Cooper Union, Fordham University, New York University, New York Institute of Technology, Pace University, and Yeshiva University. The public CUNY system is one of the largest universities in the nation, comprising 24 institutions across all five boroughs: senior colleges, community colleges, and other graduate/professional schools. The public State University of New York (SUNY) system also serves New York City, as well as the rest of the state. The city also has other smaller private colleges and universities, including many religious and special-purpose institutions, such as St. John's University, The Juilliard School, Manhattan College, The College of Mount Saint Vincent, The New School, Pratt Institute, The School of Visual Arts, The King's College, and Wagner College.
The City University of New York system consists of how many institutions?
24

Here is a question about this article: Bipolar transistors are so named because they conduct by using both majority and minority carriers. The bipolar junction transistor, the first type of transistor to be mass-produced, is a combination of two junction diodes, and is formed of either a thin layer of p-type semiconductor sandwiched between two n-type semiconductors (an npn transistor), or a thin layer of n-type semiconductor sandwiched between two p-type semiconductors (a pnp transistor). This construction produces two pn junctions: a baseemitter junction and a basecollector junction, separated by a thin region of semiconductor known as the base region (two junction diodes wired together without sharing an intervening semiconducting region will not make a transistor).
What is the answer to this question: What is the name for a layer of n-type semiconductor set between two p-type semiconductors?
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So...
pnp transistor