The problem: Answer a question about this article:
The design architecture of USB is asymmetrical in its topology, consisting of a host, a multitude of downstream USB ports, and multiple peripheral devices connected in a tiered-star topology. Additional USB hubs may be included in the tiers, allowing branching into a tree structure with up to five tier levels. A USB host may implement multiple host controllers and each host controller may provide one or more USB ports. Up to 127 devices, including hub devices if present, may be connected to a single host controller. USB devices are linked in series through hubs. One hubbuilt into the host controlleris the root hub.
How many USB ports may a host controller provide?
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The answer: one or more USB ports

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Shifts of international power have most notably occurred through major conflicts. The conclusion of the Great War and the resulting treaties of Versailles, St-Germain, Neuilly, Trianon and Sevres witnessed the United Kingdom, France, Italy, Japan and the United States as the chief arbiters of the new world order. In the aftermath of World War I the German Empire was defeated, the Austria-Hungarian empire was divided into new, less powerful states and the Russian Empire fell to a revolution. During the Paris Peace Conference, the "Big Four"France, Italy, United Kingdom and the United Statesheld noticeably more power and influence on the proceedings and outcome of the treaties than Japan. The Big Four were leading architects of the Treaty of Versailles which was signed by Germany; the Treaty of St. Germain, with Austria; the Treaty of Neuilly, with Bulgaria; the Treaty of Trianon, with Hungary; and the Treaty of Sevres, with the Ottoman Empire. During the decision-making of the Treaty of Versailles, Italy pulled out of the conference because a part of its demands were not met and temporarily left the other three countries as the sole major architects of that treaty, referred to as the "Big Three".
What marked the conclusion of The Great War?
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The answer: treaties of Versailles, St-Germain, Neuilly, Trianon and Sevres

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Most Paramount sound releases made prior to 1950 are owned by EMKA, Ltd./NBCUniversal Television Distribution, while Paramount (currently owned by Viacom) holds on to most of its post-1949 releases, which are distributed for television by Trifecta Entertainment & Media. Columbia's film output is owned by Sony (through Sony Pictures Television); distribution of 20th Century Fox's film library is handled for television by its 21st Century Fox subsidiary 20th Television, and the Walt Disney Studios (owned by The Walt Disney Company) has its library film output handled for television by Disney-ABC Domestic Television. Classic films released by 20th Century Fox, Paramount Pictures, Universal Studios, and Columbia Pictures are licensed individually for broadcast on Turner Classic Movies.
Who owns Paramount?
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The answer: Viacom

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Tucson's primary electrical power source is a coal and natural gas power-plant managed by Tucson Electric Power that is situated within the city limits on the south-western boundary of Davis-Monthan Air-force base adjacent to Interstate-10. The air pollution generated has raised some concerns as the Sundt operating station has been online since 1962 as is exempt from many pollution standards and controls due to its age. Solar has been gaining ground in Tucson with its ideal over 300 days of sunshine climate. Federal, state, and even local utility credits and incentives have also enticed residents to equip homes with solar systems. Davis-Monthan AFB has a 3.3 Megawatt (MW) ground-mounted solar photovoltaic (PV) array and a 2.7 MW rooftop-mounted PV array, both of which are located in the Base Housing area. The base will soon have the largest solar-generating capacity in the United States Department of Defense after awarding a contract on September 10, 2010, to SunEdison to construct a 14.5 MW PV field on the northwestern side of the base.
What does Tucson's main power plant use for fuel?
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The answer:
coal and natural gas