In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

Question: What were the main groups involved in the event that resulted in the sacking of Constantinople in 1204? Passage:Papal calls for renewed holy war at the end of the twelfth century inspired not only the disastrous Fourth Crusade that sacked Constantinople in 1204, but also a series of simultaneous "Northern Crusades" that are less fully covered in English-language popular history, but which were more successful in the long run. Before the crusades, the region of Livonia was a mixed outpost, a pagan society where merchants from the Hanseatic League encountered merchants of Novgorod, and where Germanic, Scandinavian, and Russian trade, culture, and cults all mingled. The specific ethnic groups that intermingled and traded with the Germans, Danish, Swedish, and Russians here included the Wends, who were merchants from Lubeck, the Estonians, the Karelians, the Kuronians, the Lettgallians, the Semgallians (sometimes known as the Letts), the Livonians and the Lithuanians. The Western merchants would trade silver, textiles, and other luxury goods for furs, beeswax, honey, leather, dried fish, and amber. Livonia had been an especially promising location in terms of resources, and Arnold of Lubeck, in his Chronicle of the Slavs wrote that the land was "abundant in many riches" and was "fertile in fields, plentiful in pastures, irrigated by rivers", and "also sufficiently rich in fish and forested with trees".

Papal calls for renewed holy war at the end of the twelfth century inspired not only the disastrous Fourth Crusade that sacked Constantinople in 1204, but also a series of simultaneous "Northern Crusades" that are less fully covered in English-language popular history, but which were more successful in the long run

Question: How old was George II when his daughter was born? Passage:Charles Bertram was born in London in 1723. He was the son of an English silk dyer who was usually accounted to have emigrated to Copenhagen, Denmark, among the retinue of Princess Louisa, a daughter of GeorgeII, upon her marriage to Crown Prince Frederick of Denmark in 1743. (The prince became KingFrederickV three years later.) Other sources suggest the father immigrated earlier, in 1738. The father established himself as a hosier in 1744, and Charles seems to have benefited from the warm reception that Louisa and her retinue received from the Danes. On 5 July 1747, Charles petitioned the University of Copenhagen's Consortium for admission to study history, antiquities, philosophy, and mathematics. This seems to have been granted, although students were generally required to adhere to the Danish Church and Bertram remained Anglican. He became a friend and protege of Hans Gram, the royal librarian and a member of the privy council. On 23 March 1748, Bertram petitioned the king to be permitted to give public lectures on the English language and became a teacher of English in the Royal Marine Academy in Copenhagen. (Some accounts name him as a professor, rather than a tutor; if so, that status would have been granted some years later, as he was a new undergraduate in 1747.) His 1749 chrestomathy An Essay on the Excellency and Style of the English Tongue has been called the initiation of English-language printing in Denmark. A brother apparently died at sea in 1752, and at some point he married Cathrine Marie Gold.

He was the son of an English silk dyer who was usually accounted to have emigrated to Copenhagen, Denmark, among the retinue of Princess Louisa, a daughter of GeorgeII, upon her marriage to Crown Prince Frederick of Denmark in 1743

Question: Did Oldfield receive all of his education in Australia? Passage:Oldfield, an Australian national, said he was making "a protest against inequalities in British society, government cuts, reductions in civil liberties and a culture of elitism". Oxford number two, William Zeng, denounced Oldfield and described him as "a mockery of a man", while Oxford boat club president Karl Hudspith tweeted "my team went through seven months of hell, this was the culmination of our careers and [Oldfield] took it from us". Educated at the Sydney Church of England Grammar School, the University of Sydney and the London School of Economics, and Fellow of the Royal Society of Arts, Oldfield tweeted the day after the race, "Having been deep within elite institutions I have a very good understanding of them. I protest their injustices ask anyone that knows me". On his blog, Oldfield compared his actions to those of Emily Davison, the suffragette killed after stepping in front of the King's horse at The Derby in 1913. Despite later stating he had some sympathy for both the rowers and spectators, he said he had no regrets and that he "would have felt less of a man" had he not made the protest. In October 2012, Oldfield was jailed for six months for causing a public nuisance and ordered to pay 750 costs. In June 2013, he was refused leave to remain in the United Kingdom, the Home Office claiming his presence there was not "conducive to the public good". Oldfield, whose wife is from India, appealed on the grounds that she would be threatened in Australia, and in December 2013, the deportation order was overturned. Security for the 2013 race was increased as a result of Oldfield's actions, with Royal Marines, additional stewards and the Metropolitan Police Marine Policing Unit in attendance.
Educated at the Sydney Church of England Grammar School, the University of Sydney and the London School of Economics, and Fellow of the Royal Society of Arts, Oldfield tweeted the day after the race, "Having been deep within elite institutions I have a very good understanding of them