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.
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Question: Passage: Speedy and his friend Miguel visit a ghost town in the desert, followed by Daffy. There, Speedy unveils what appears to be gold and a map to the location of the mine where more can be found. Daffy notices, and attempts to take the map; he is foiled by getting caught in the piano tape.
Daffy's next attempt involves setting up a phone with explosives. Speedy answers it when it rings, but quickly hands it to Daffy, saying he has a call; his plan backfires as he is blown up. Speedy teases him, "What's the matter, epa loco? You got the wrong number?" He takes off, Daffy in hot pursuit. Daffy finds him in a barrel, and throws a grenade in; however, he accidentally throws the pin, and not the actual grenade.
He then sticks his head through a hole in the fence, catching Speedy by the tail, but Miguel drops a horseshoe on him. Further antics ensue, including Daffy having a taxidermy bull head fall on him like a mask and Speedy (taking advantage of Daffy's appearance) acting as a matador, and Speedy hiding behind different-shaped bottles, only to get catsup in his eye on the last. Speedy and Miguel head to the mine, where Daffy repeatedly tries to throw dynamite in, to blow them up; it eventually blows up right next to him.
Daffy then demands that Speedy give up the cart, which he does. However, it is not gold, but cheese! Daffy then really does go crazy, bouncing away and laughing hysterically. When Miguel asks "Gee whiz, Speedy, what's the matter with the loco duck?", Speedy shrugs, "I dunno. I guess maybe he don't like cheese.".

Answer: Where does Speedy unveil a map?


Question: 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.

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


Question: Passage: The most important nautical innovation of the Song period seems to have been the introduction of the magnetic mariner's compass, which permitted accurate navigation on the open sea regardless of the weather. The magnetized compass needle – known in Chinese as the "south-pointing needle" – was first described by Shen Kuo in his 1088 Dream Pool Essays and first mentioned in active use by sailors in Zhu Yu's 1119 Pingzhou Table Talks.
There were other considerable advancements in hydraulic engineering and nautical technology during the Song dynasty. The 10th-century invention of the pound lock for canal systems allowed different water levels to be raised and lowered for separated segments of a canal, which significantly aided the safety of canal traffic and allowed for larger barges. There was the Song-era innovation of watertight bulkhead compartments that allowed damage to hulls without sinking the ships. If ships were damaged, the Chinese of the 11th century employed drydocks to repair them while suspended out of the water. The Song used crossbeams to brace the ribs of ships in order to strengthen them in a skeletal-like structure. Stern-mounted rudders had been mounted on Chinese ships since the 1st century, as evidenced with a preserved Han tomb model of a ship. In the Song period, the Chinese devised a way to mechanically raise and lower rudders in order for ships to travel in a wider range of water depths. The Song arranged the protruding teeth of anchors in a circular pattern instead of in one direction. David Graff and Robin Higham state that this arrangement "[made] them more reliable" for anchoring ships.

Answer:
Who were the first people to use the magnetized compass needle?