Here is a question about this article: Ertugrul, the father of Osman I (founder of the Ottoman Empire), arrived in Anatolia from Merv (Turkmenistan) with 400 horsemen to aid the Seljuks of Rum against the Byzantines. After the demise of the Turkish Seljuk Sultanate of Rum in the 14th century, Anatolia was divided into a patchwork of independent, mostly Turkish states, the so-called Ghazi emirates. One of the emirates was led by Osman I (12581326), from whom the name Ottoman is derived. Osman I extended the frontiers of Turkish settlement toward the edge of the Byzantine Empire. It is not well understood how the early Ottomans came to dominate their neighbours, as the history of medieval Anatolia is still little known.
What is the answer to this question: When did the Turkish Seljuk Sultanate of Rum reach its demise?
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So... 14th century

The problem: Answer a question about this article:
Eight days later, on February 28, 1969, came the events for which Kerry was awarded his Silver Star Medal. On this occasion, Kerry was in tactical command of his Swift boat and two other Swift boats during a combat operation. Their mission on the Duong Keo River included bringing an underwater demolition team and dozens of South Vietnamese Marines to destroy enemy sampans, structures and bunkers as described in the story The Death Of PCF 43. Running into heavy small arms fire from the river banks, Kerry "directed the units to turn to the beach and charge the Viet Cong positions" and he "expertly directed" his boat's fire causing the enemy to flee while at the same time coordinating the insertion of the ninety South Vietnamese troops (according to the original medal citation signed by Admiral Zumwalt). Moving a short distance upstream, Kerry's boat was the target of a B-40 rocket round; Kerry charged the enemy positions and as his boat hove to and beached, a Viet Cong ("VC") insurgent armed with a rocket launcher emerged from a spider hole and ran. While the boat's gunner opened fire, wounding the VC in the leg, and while the other boats approached and offered cover fire, Kerry jumped from the boat to pursue the VC insurgent, subsequently killing him and capturing his loaded rocket launcher.
Where did Kerry earn a Silver Star?
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The answer: the Duong Keo River

Problem: Please answer a question about the following article about Great power:
Since the end of the World Wars, the term "great power" has been joined by a number of other power classifications. Foremost among these is the concept of the superpower, used to describe those nations with overwhelming power and influence in the rest of the world. It was first coined in 1944 by William T.R. Fox and according to him, there were three superpowers: the British Empire, the United States, and the Soviet Union. But by the mid-1950s the British Empire lost its superpower status, leaving the United States and the Soviet Union as the world's superpowers.[nb 2] The term middle power has emerged for those nations which exercise a degree of global influence, but are insufficient to be decisive on international affairs. Regional powers are those whose influence is generally confined to their region of the world.
Who were the three original superpowers?
A: British Empire, the United States, and the Soviet Union

Question: Read this and answer the question

On August 17, 2007, Dell Inc. announced that after an internal investigation into its accounting practices it would restate and reduce earnings from 2003 through to the first quarter of 2007 by a total amount of between $50 million and $150 million, or 2 cents to 7 cents per share. The investigation, begun in November 2006, resulted from concerns raised by the U.S. Securities and Exchange Commission over some documents and information that Dell Inc. had submitted. It was alleged that Dell had not disclosed large exclusivity payments received from Intel for agreeing not to buy processors from rival manufacturer AMD. In 2010 Dell finally paid $100 million to settle the SEC's charges of fraud. Michael Dell and other executives also paid penalties and suffered other sanctions, without admitting or denying the charges.

What was the minimum amount of earnings that would be restated by Dell's investigation?
Answer: $50 million

Problem: In December 2013, Vatican officials approved a supposed miracle that was attributed to the intercession of the late pontiff which was the curing of an unborn child in California, U.S.A in the 1990s. It was expected that Pope Francis would approve the miracle in the near future, thus, warranting the beatification of the late pontiff. In February 2014, it was reported that the consulting Vatican theologians to the Congregation for the Causes of Saints recognized the miracle attributed to the late pontiff.
What group was responsible for recognizing Paul Vi's miracle?
The answer is the following: Congregation for the Causes of Saints

Input: Article: In recent years light emitting diodes (LEDs) are becoming increasingly efficient leading to an extraordinary increase in the use of solid state lighting. In many situations, controlling the light emission of LEDs may be done most effectively by using the principles of nonimaging optics.

Now answer this question: What is a form of solid state lighting?

Output:
LEDs