In comparison to the principal alternative, the diesel engine, electric railways offer substantially better energy efficiency, lower emissions and lower operating costs. Electric locomotives are usually quieter, more powerful, and more responsive and reliable than diesels. They have no local emissions, an important advantage in tunnels and urban areas. Some electric traction systems provide regenerative braking that turns the train's kinetic energy back into electricity and returns it to the supply system to be used by other trains or the general utility grid. While diesel locomotives burn petroleum, electricity is generated from diverse sources including many that do not produce carbon dioxide such as nuclear power and renewable forms including hydroelectric, geothermal, wind and solar.
What is one of the sources electricity is being generated from?
geothermal

Input: Sino-Tibetan relations during the Ming dynasty
Wang and Nyima argue that the Ming emperor sent edicts to Tibet twice in the second year of the Ming dynasty, and demonstrated that he viewed Tibet as a significant region to pacify by urging various Tibetan tribes to submit to the authority of the Ming court. They note that at the same time, the Mongol Prince Punala, who had inherited his position as ruler of areas of Tibet, went to Nanjing in 1371 to pay tribute and show his allegiance to the Ming court, bringing with him the seal of authority issued by the Yuan court. They also state that since successors of lamas granted the title of "prince" had to travel to the Ming court to renew this title, and since lamas called themselves princes, the Ming court therefore had "full sovereignty over Tibet." They state that the Ming dynasty, by issuing imperial edicts to invite ex-Yuan officials to the court for official positions in the early years of its founding, won submission from ex-Yuan religious and administrative leaders in the Tibetan areas, and thereby incorporated Tibetan areas into the rule of the Ming court. Thus, they conclude, the Ming court won the power to rule Tibetan areas formerly under the rule of the Yuan dynasty.

What edicts did the Ming issue?
Output: imperial edicts

Input: Article: Unlike the situation with the states, there is no plenary reception statute at the federal level that continued the common law and thereby granted federal courts the power to formulate legal precedent like their English predecessors. Federal courts are solely creatures of the federal Constitution and the federal Judiciary Acts. However, it is universally accepted that the Founding Fathers of the United States, by vesting "judicial power" into the Supreme Court and the inferior federal courts in Article Three of the United States Constitution, thereby vested in them the implied judicial power of common law courts to formulate persuasive precedent; this power was widely accepted, understood, and recognized by the Founding Fathers at the time the Constitution was ratified. Several legal scholars have argued that the federal judicial power to decide "cases or controversies" necessarily includes the power to decide the precedential effect of those cases and controversies.

Now answer this question: What did the missing plenary reception do?

Output: granted federal courts the power to formulate legal precedent

Article: In 1986, eight years before the launch of Turner Classic Movies, Ted Turner acquired the Metro-Goldwyn-Mayer film studio for $1.5 billion. Concerns over Turner Entertainment's corporate debt load resulted in Turner selling the studio that October back to Kirk Kerkorian, from whom Turner had purchased the studio less than a year before. As part of the deal, Turner Entertainment retained ownership of MGM's library of films released up to May 9, 1986. Turner Broadcasting System was split into two companies; Turner Broadcasting System and Metro-Goldwyn-Mayer and reincorporated as MGM/UA Communications Co.

Question: How much did Ted Turner pay for Metro-Goldwyn Mayer?
Ans: $1.5 billion

Here is a question about this article: In addition to these popular examples of house, there has also been a reunification of contemporary house and its roots. Many hip hop and R&B artists also turn to house music to add a mass appeal to the music they produce.
What is the answer to this question: What genre of artists has recently turned to house music to add mass appeal?
****
So... hip hop and R&B

Article: The king returned west but is said to have lost a significant part of his baggage train along the way. Roger of Wendover provides the most graphic account of this, suggesting that the king's belongings, including the Crown Jewels, were lost as he crossed one of the tidal estuaries which empties into the Wash, being sucked in by quicksand and whirlpools. Accounts of the incident vary considerably between the various chroniclers and the exact location of the incident has never been confirmed; the losses may have involved only a few of his pack-horses. Modern historians assert that by October 1216 John faced a "stalemate", "a military situation uncompromised by defeat".

Question: What did the king lose on his way to the west?
Ans:
significant part of his baggage