In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
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Question: Passage: McGillivray returned to Montreal in 1793 and then took a trip to Scotland and England. He was now a partner in McTavish, Frobisher & Co., who controlled the NWC. With John Gregory, he was sent to manage the company's huge depot at Grand Portage, stirring jealousy among some of the other partners. When Joseph Frobisher retired in 1798, McGillivray took his place. He set up an agency at New York City to get around the East India Company's monopoly enabling them to trade with China. He was closely involved too with the firm of McTavish, Fraser & Co., at London, managed by another relation of his uncle's, John Fraser. In 1803, he helped organize the move of the NWC's main depot from Grand Portage to Thunder Bay. All this time he was dealing with relations with the Hudson's Bay Company and the splinter XY Company that had broken away from the NWC, led by John Richardson.
 Link Information: Montreal is the most populous municipality in the Canadian province of Quebec and the second-most populous municipality in Canada Answer: Canada

Answer: What country did McGillivray return to before taking a trip to Scotland and England?


Question: Passage: The 2003–04 NBA season was the 34th season for the Portland Trail Blazers in the National Basketball Association. After years of off the court troubles and playoff underachieving, the Blazers under new General Manager John Nash, decided to rebuild. Throughout the season, the Blazers dealt away talented but troubled stars like trading Bonzi Wells, after losing his co-captain title, to the Memphis Grizzlies in November, and trading Rasheed Wallace to the Atlanta Hawks for Shareef Abdur-Rahim and Theo Ratliff in February. However, after appearing in only one game with the Hawks, Sheed was again traded to the Detroit Pistons for the rest of the season. The Pistons would eventually win the NBA Finals of that year, giving Wallace his first championship. The team also sent Jeff McInnis to the Cleveland Cavaliers for Darius Miles.
 Link Information: Rasheed Abdul Wallace (born September 17, 1974) is an American former professional basketball player who played 16 seasons in the National Basketball Association (NBA) Answer: Theo Ratliff

Answer: Which of the two players that the Trail Blazers acquired from the Hawks had been playing professional basketball the longest?


Question: Passage: The Byzantine Empire held the region between the Danube and the Black Sea (modern Dobruja) from time to time (such as during Justinian's reign in the 6th century) or again under some emperors of the Macedonian and Komnenian dynasties, being part of the Byzantine Paristrion thema (province) between in the period 971–976 and between 1001 and 1185, although it was a border that was hard to maintain due to the constant invasions from the north. Dobrudja was part of the Bulgarian Empire during its whole period of existence. The area around the Danube Delta was the site of battle of Ongal in 680 which led to the formation of Bulgaria in 681. Since the formation of the country the Bulgarians controlled the Wallachian Plain and Bessarabia to the north of the Danube, bordering the Avars to the north-west. The Bulgarians under Khan Krum destroyed the crumbling Avar Khanate in 803 and moved the border along the river Tisza, thus including Transylvania and parts of Pannonia in the Bulgarian state. In a military conflict with the Franks between 827–829 the Bulgarians secured their border with the Frankish Empire.
 Link Information: none Answer: none

Answer:
What was the combined population of Bessarabia and Wallachian Plain during the formation of Bulgaria?