TASK DEFINITION: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
PROBLEM: Passage: The Balts were largely driven to unite by external threats from aggressive German religious orders. In 1202, the Order of the Livonian Brothers of the Sword was established by Albert, the Bishop of Riga, to promote the Christianization and conquest of the Livonians, Curonians, Semigallians, and Estonians near the Gulf of Riga. The Order waged a number of successful campaigns and posed a great danger to the Lithuanian territories. The Order's progress was halted by its defeat at the Battle of Saule in 1236, after which it almost collapsed. The following year, it merged into the Teutonic Knights.In 1226, Konrad I of Masovia invited the Teutonic Knights to defend his borders and subdue the Prussians, offering the Knights the use of Chełmno (Kulm) as a base for their campaign. In 1230, they settled in Chełmno, built a castle, and began attacking Prussian lands. After 44 years, and despite two Prussian uprisings against them, they had conquered most of the Prussian tribes. Afterwards, the Knights spent nine years conquering the Nadruvians, Skalvians, and Yotvingians, and from 1283, they were better positioned to threaten the young Lithuanian state from the west.
Further unification of the Lithuanian tribes was facilitated by the social changes that took place in Lithuania during this period. Private land ownership was established (allodiums, Lithuanian: atolai), which would later evolve into a feudal system. As attested by many chronicles, it was the principal form of organization governing land ownership in the 13th century. Under this system, known in England as primogeniture, only the eldest son could inherit lands, which allowed dukes to consolidate their holdings. Social classes and divisions of labor also began taking shape. There were classes of experienced soldiers (bajoras), of free peasants (laukininkas), and of "unfree" people (kaimynas and šeimynykštis). In order to enforce this social structure, a united state was needed. Another force behind unification was the desire to take advantage of Ruthenian lands, which were suffering from the Mongol invasion. Temporary alliances among Lithuanian dukes often sufficed for military ventures into, and plundering of, these lands (including Pskov, plundered in 1213). Altogether, between 1201 and 1236, Lithuanians launched at least 22 incursions into Livonia, 14 into Rus, and 4 into Poland. The ongoing administration of conquered territories, however, required a strong and unified central power.

SOLUTION: What is the full name of the group that posed a great danger to the Lithuanian territories and waged a number of successful campaigns?

PROBLEM: Passage: By the 15th century the reach and influence of the Burgundian princes meant that the Low Countries' merchant and banker classes were in the ascendancy. The early to mid-century saw great rises in international trade and domestic wealth, leading to an enormous increase in the demand for art. Artists from the area attracted patronage from the Baltic coast, the north German and Polish regions, the Iberian Peninsula, Italy and the powerful families of England and Scotland. At first, masters had acted as their own dealers, attending fairs where they could also buy frames, panels and pigments. The mid-century saw the development of art dealership as a profession; the activity became purely commercially driven, dominated by the mercantile class.
Burgundian rule created a large class of courtiers and functionaries. Some gained enormous power and commissioned paintings to display their wealth and influence. Civic leaders also commissioned works from major artists, such as Bouts' Justice for Emperor Otto III, van der Weyden's The Justice of Trajan and Herkinbald and David's Justice of Cambyses. Civic commissions were less common and were not as lucrative, but they brought notice to and increased a painter's reputation, as with Memling, whose St John Altarpiece for Bruges' Sint-Janshospitaal brought him additional civic commissions.Wealthy foreign patronage and the development of international trade afforded the established masters the chance to build up workshops with assistants.  Although first-rank painters such as Petrus Christus and Hans Memling found patrons among the local nobility, they catered specifically to the large foreign population in Bruges. Painters not only exported goods but also themselves; foreign princes and nobility, striving to emulate the opulence of the Burgundian court, hired painters away from Bruges.

SOLUTION: What were the name of three paintings civic leaders commissioned from major artists?

PROBLEM: Passage: The book is partly autobiographical. It follows the adventures of a group of people – the narrator Laurie, the eccentric Dorothea ffoulkes-Corbett (otherwise Aunt Dot), her High Anglican clergyman friend Father Hugh Chantry-Pigg (who keeps his collection of sacred relics in his pockets) – travelling from Istanbul (or Constantinople as Fr. Chantry-Pigg would have it) to Trebizond. A Turkish feminist doctor attracted to Anglicanism acts as a foil to the main characters. 
On the way, they meet magicians, Turkish policemen and juvenile British travel-writers, and observe the BBC and Billy Graham on tour. Aunt Dot proposes to emancipate the women of Turkey by converting them to Anglicanism and popularising the bathing hat, while Laurie has more worldly preoccupations. Historical references (British Christianity since the Dissolution of the Monasteries, nineteenth-century travellers to the Ottoman Empire, the First World War, the Fourth Crusade, St. Paul's third missionary journey, Troy) abound. 
The geographical canvas is enlarged with the two senior characters eloping to the Soviet Union and the heroine meeting her lover in Turkey, and then her semi-estranged mother in Jerusalem. The final chapters raise multiple issues such as the souls of animals, and culminate in a fatal accident and its aftermath.
At another level the book, against its Anglo-Catholic backdrop, deals with the conflict between Laurie's attraction to Christianity and her adulterous love for a married man. This was a problem Macaulay had faced in her own life, having had an affair with the married novelist and former Roman Catholic priest Gerald O'Donovan (1871–1942) from 1920 until his death.
The book's opening sentence is,"Take my camel, dear", said my Aunt Dot, as she climbed down from this animal on her return from High Mass.

SOLUTION:
What is the thing that Laurie narrates?