Problem: Given the question: Given the following context: The Li family belonged to the northwest military aristocracy prevalent during the Sui dynasty and claimed to be paternally descended from the Daoist founder, Laozi (whose personal name was Li Dan or Li Er) the Han dynasty General Li Guang and Western Liang ruler Li Gao. This family was known as the Longxi Li lineage (Li lineage; ), which includes the Tang poet Li Bai. The Tang Emperors also had Xianbei maternal ancestry, from Emperor Gaozu of Tang's Xianbei mother, Duchess Dugu. Li Yuan was Duke of Tang and governor of Taiyuan, modern Shanxi, during the Sui dynasty's collapse, which was caused in part by the Sui failure to conquer the northern part of the Korean peninsula during the GoguryeoSui War. He had prestige and military experience, and was a first cousin of Emperor Yang of Sui (their mothers were sisters). Li Yuan rose in rebellion in 617, along with his son and his equally militant daughter Princess Pingyang (d. 623), who raised and commanded her own troops. In winter 617, Li Yuan occupied Chang'an, relegated Emperor Yang to the position of Taishang Huang or retired emperor, and acted as regent to the puppet child-emperor, Yang You. On the news of Emperor Yang's murder by General Yuwen Huaji on June 18, 618, Li Yuan declared himself the emperor of a new dynasty, the Tang.Li Yuan, known as Emperor Gaozu of Tang, ruled until 626, when he was forcefully deposed by his son Li Shimin, the Prince of Qin. Li Shimin had commanded troops since the age of 18, had prowess with bow and arrow, sword and lance and was known for his effective cavalry charges. Fighting a numerically superior army, he defeated Dou Jiande (573621) at Luoyang in the Battle of Hulao on May 28, 621. In a violent elimination of royal family due to fear of assassination, Li Shimin ambushed and killed two of his brothers, Li Yuanji (b. 603) and Crown prince Li Jiancheng (b. 589), in the Xuanwu Gate Incident on July 2, 626. Shortly thereafter, his father abdicated in his favor and Li Shimin ascended the throne. He is... answer the following question: What are the three names of the Daoist fouder?
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The answer is:
Laozi

input question: Given the following context: The Annunciation draws heavily on van der Weyden's 1430s Louvre Annunciation, his c. 1455 Saint Columba altarpiece, and the Clugny Annunciation (c. 146575), which is attributed to either van der Weyden or Memling. Memling almost certainly was apprenticed to van der Weyden in Brussels until setting up his own workshop in Bruges sometime after 1465. Memling's Annunciation is more innovative, with motifs such as the attendant angels that were absent in the earlier paintings. According to Till-Holger Borchert, not only was Memling familiar with van der Weyden's motifs and compositions, but he might have assisted with the underdrawing in van der Weyden's workshop. The shutters on the right are copied from the Louvre panel, the knotted curtain appears in the Columba triptych's "Annunciation".A sense of movement is conveyed throughout. The trailing edges of Gabriel's garment fall outside the pictorial space, indicating his arrival. The Virgin's "serpentine" pose, with attendant angels supporting her, adds to the sense of flow. Memling's use of color achieves a startling effect. The traditional rays of light are replaced with light color indicators; the white clothes rendered in "icy" blue, the angel to the right in yellow patches seems "bleached by light", the left-hand angel appears to be steeped in shadow, dressed in clothes of lavender and bearing deep green wings. The effect is iridescent, according to Blum, who writes, "this shimmering surface gives [the figures] an unearthly quality, separating them from the more believable world of the bedchamber." The effect deviates from the pure naturalism and realism which typifies Early Netherlandish art, causing a "startling" juxtaposition, an effect that is "unsteadying" and contradictory. answer the following question: What is the name of the person who might have assisted with the underdrawing in Van der Weyden's workshop????
output answer: Memling

Please answer this: Given the following context: The painting was well-received in Serbia and abroad; it has since attained iconic status in Serbian popular culture. An allusion to it is made in Emir Kusturica's 1995 film Underground, in which war refugees are depicted marching towards Belgrade in similar fashion, following the German bombing of the city in April 1941. Several authors have noted similarities between Jovanovic's depiction of the migration and images of other upheavals in Serbian history. Historian Katarina Todic observes that there are striking similarities between the painting and photographs of the Royal Serbian Army's retreat to the Adriatic coast during World War I. Judah remarks that the composition resembles images of the exodus of Krajina Serbs following Croatia's Operation Storm in August 1995.The journalist John Kifner describes Migration of the Serbs as a "Balkan equivalent to Washington Crossing the Delaware ... an instantly recognizable [icon] of the 500-year struggle against the Ottoman Turks." Professor David A. Norris, a historian specializing in Serbian culture, calls Jovanovic's approach "highly effective", and writes how the stoic attitude of the priests, warriors and peasants reminds the viewer of the historical significance of the migration. He asserts that Migration of the Serbs and similar paintings stimulated a "revived collective memory" among the new Serbian middle class, "transforming ... folk memory into a more modern vehicle for the invention of a new national ideology based on the Serbian struggle for freedom from foreign domination." Art historian Michele Facos describes the painting as a celebration of the Serbs' "valiant effort to defend Christian Europe against ... the Ottoman Turks." The historian Noel Malcolm doubts the historical veracity of depictions of Arsenije leading vast columns of refugees, saying that there is no concrete evidence to confirm or deny that the number of migrants exceeded 40,000, as Church leaders claimed.Filipovitch-Robinson ranks the painting among Jovanovic's three best works,... answer the following question: What is the name of the painting that has attained iconic status in Serbian popular culture?
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Answer:
Migration of the Serbs