The problem: Answer a question about this article:
Michel Djotodia took over as president and in May 2013 Central African Republic's Prime Minister Nicolas Tiangaye requested a UN peacekeeping force from the UN Security Council and on 31 May former President Bozize was indicted for crimes against humanity and incitement of genocide. The security situation did not improve during JuneAugust 2013 and there were reports of over 200,000 internally displaced persons (IDPs) as well as human rights abuses and renewed fighting between Seleka and Bozize supporters.
What was Bozize indicted for?
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The answer: crimes against humanity

Problem: Please answer a question about the following article about Edmund Burke:
On 20 June 1794, Burke received a vote of thanks from the Commons for his services in the Hastings Trial and he immediately resigned his seat, being replaced by his son Richard. A tragic blow fell upon Burke with the loss of Richard in August 1794, to whom he was tenderly attached, and in whom he saw signs of promise, which were not patent to others and which, in fact, appear to have been non-existent (though this view may have rather reflected the fact that Richard Burke had worked successfully in the early battle for Catholic emancipation). King George III, whose favour he had gained by his attitude on the French Revolution, wished to create him Earl of Beaconsfield, but the death of his son deprived the opportunity of such an honour and all its attractions, so the only award he would accept was a pension of 2,500. Even this modest reward was attacked by the Duke of Bedford and the Earl of Lauderdale, to whom Burke replied in his Letter to a Noble Lord (1796): "It cannot at this time be too often repeated; line upon line; precept upon precept; until it comes into the currency of a proverb, To innovate is not to reform". He argued that he was rewarded on merit, but the Duke of Bedford received his rewards from inheritance alone, his ancestor being the original pensioner: "Mine was from a mild and benevolent sovereign; his from Henry the Eighth". Burke also hinted at what would happen to such people if their revolutionary ideas were implemented, and included a description of the British constitution:
When did Burke receive a vote of thanks?
A: 20 June 1794

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The most famous escapee was the Boer prisoner of war Captain Fritz Joubert Duquesne who was serving a life sentence for "conspiracy against the British government and on (the charge of) espionage.". On the night of 25 June 1902, Duquesne slipped out of his tent, worked his way over a barbed-wire fence, swam 1.5 miles (2.4 km) past patrol boats and bright spot lights, through storm-wracked, shark infested waters, using a distant lighthouse for navigation until he arrived ashore on the main island. From there he escaped to the port of St. George's and a week later, he stowed away on a boat heading to Baltimore, Maryland. He settled in the US and later became a spy for Germany in both World Wars. In 1942, Col. Duquesne was arrested by the FBI for leading the Duquesne Spy Ring, which still to this day the largest espionage case in the history of the United States.

Why is Captain Fritz Joubert Duquesne famous?
Answer: most famous escapee

Problem: In 2006, Beyonce introduced her all-female tour band Suga Mama (also the name of a song in B'Day) which includes bassists, drummers, guitarists, horn players, keyboardists and percussionists. Her background singers, The Mamas, consist of Montina Cooper-Donnell, Crystal Collins and Tiffany Monique Riddick. They made their debut appearance at the 2006 BET Awards and re-appeared in the music videos for "Irreplaceable" and "Green Light". The band have supported Beyonce in most subsequent live performances, including her 2007 concert tour The Beyonce Experience, 20092010 I Am... World Tour and 20132014 The Mrs. Carter Show World Tour.
When did The Mamas make their debut?
The answer is the following: the 2006 BET Awards

In 1998, after the return of Steve Jobs, Apple consolidated its multiple consumer-level desktop models into the all-in-one iMac G3, which became a commercial success and revitalized the brand. Since their transition to Intel processors in 2006, the complete lineup is entirely based on said processors and associated systems. Its current lineup comprises three desktops (the all-in-one iMac, entry-level Mac mini, and the Mac Pro tower graphics workstation), and four laptops (the MacBook, MacBook Air, MacBook Pro, and MacBook Pro with Retina display). Its Xserve server was discontinued in 2011 in favor of the Mac Mini and Mac Pro.
When was Mac's Xserve server discontinued?
2011

Here is a question about this article: Modern electrification systems take AC energy from a power grid which is delivered to a locomotive and converted to a DC voltage to be used by traction motors. These motors may either be DC motors which directly use the DC or they may be 3-phase AC motors which require further conversion of the DC to 3-phase AC (using power electronics). Thus both systems are faced with the same task: converting and transporting high-voltage AC from the power grid to low-voltage DC in the locomotive. Where should this conversion take place and at what voltage and current (AC or DC) should the power flow to the locomotive? And how does all this relate to energy-efficiency? Both the transmission and conversion of electric energy involve losses: ohmic losses in wires and power electronics, magnetic field losses in transformers and smoothing reactors (inductors). Power conversion for a DC system takes place mainly in a railway substation where large, heavy, and more efficient hardware can be used as compared to an AC system where conversion takes place aboard the locomotive where space is limited and losses are significantly higher. Also, the energy used to blow air to cool transformers, power electronics (including rectifiers), and other conversion hardware must be accounted for.
What is the answer to this question: What nowdays electrification systems can use?
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So...
DC motors which directly use the DC or they may be 3-phase AC motors