[Q]: Question: "How has production potential from the oil sands been increased?" Context: "Naturally occurring crude asphalt/bitumen impregnated in sedimentary rock is the prime feed stock for petroleum production from "Oil sands", currently under development in Alberta, Canada. Canada has most of the world's supply of natural asphalt/bitumen, covering 140,000 square kilometres (an area larger than England), giving it the second-largest proven oil reserves in the world. The Athabasca oil sands is the largest asphalt/bitumen deposit in Canada and the only one accessible to surface mining, although recent technological breakthroughs have resulted in deeper deposits becoming producible by in situ methods. Because of oil price increases after 2003, producing bitumen became highly profitable, but as a result of the decline after 2014 it became uneconomic to build new plants again. By 2014, Canadian crude asphalt/bitumen production averaged about 2.3 million barrels (370,000 m3) per day and was projected to rise to 4.4 million barrels (700,000 m3) per day by 2020. The total amount of crude asphalt/bitumen in Alberta which could be extracted is estimated to be about 310 billion barrels (5010^9 m3), which at a rate of 4,400,000 barrels per day (700,000 m3/d) would last about 200 years." Answer:
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[A]: recent technological breakthroughs

[Q]: Question: "What is the job of the four divisions?" Context: "The Canadian Army is headed by the Commander of the Canadian Army and administered through four divisionsthe 2nd Canadian Division, the 3rd Canadian Division, the 4th Canadian Division and the 5th Canadian Divisionthe Canadian Army Doctrine and Training System and the Canadian Army Headquarters." Answer:
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[A]: the Canadian Army and administered through four divisions

[Q]: Question: "An attempt to grant Puerto Rico self-determination failed both in 2010 and when?" Context: "Puerto Rico is designated in its constitution as the "Commonwealth of Puerto Rico". The Constitution of Puerto Rico which became effective in 1952 adopted the name of Estado Libre Asociado (literally translated as "Free Associated State"), officially translated into English as Commonwealth, for its body politic. The island is under the jurisdiction of the Territorial Clause of the U.S. Constitution, which has led to doubts about the finality of the Commonwealth status for Puerto Rico. In addition, all people born in Puerto Rico become citizens of the U.S. at birth (under provisions of the JonesShafroth Act in 1917), but citizens residing in Puerto Rico cannot vote for president nor for full members of either house of Congress. Statehood would grant island residents full voting rights at the Federal level. The Puerto Rico Democracy Act (H.R. 2499) was approved on April 29, 2010, by the United States House of Representatives 223169, but was not approved by the Senate before the end of the 111th Congress. It would have provided for a federally sanctioned self-determination process for the people of Puerto Rico. This act would provide for referendums to be held in Puerto Rico to determine the island's ultimate political status. It had also been introduced in 2007." Answer:
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[A]: 2007

[Q]: Question: "Who were the rebels leaders that were killed?" Context: "After his arrival in 1674, Captain Damian de Esplana ordered the arrest of rebels who attacked the population of certain towns. Hostilities eventually led to the destruction of villages such as Chochogo, Pepura, Tumon, Sidia-Aty, Sagua, Nagan and Ninca.:7475 Starting in June 1676, the first Spanish Governor of Guam, Capt. Francisco de Irrisarri y Vinar controlled internal affairs more strictly than his predecessors in order to curb tensions. He also ordered the construction of schools, roads and other infrastructure.:7576 Later, Capt. Jose de Quiroga arrived in 1680 and continued some of the development projects started by his predecessors. He also continued the search for the rebels who had assassinated Father San Vitores, resulting in campaigns against the rebels which were hiding out in some islands, eventually leading to the death of Matapang, Hurao and Aguarin.:7778 Quiroga brought some natives from the northern islands to Guam, ordering the population to live in a few large villages.:7879 These included Jinapsan, Umatac, Pago, Agat and Inarajan, where he built a number of churches.:79 By July 1695, Quiroga had completed the pacification process in Guam, Rota, Tinian and Aguigan.:85" Answer:
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[A]:
Matapang, Hurao and Aguarin