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.

Passage: The blacksmith and swordsmith John is tutored at the court of King Arthur, but as a commoner he can't hope to win the hand of Lady Linet, daughter of the Earl of Yeonil. The Earl's castle is attacked by Saracens and Cornishmen — disguised as Vikings — and his wife is killed, making him lose his memory. The attack was part of a plot by the Saracen Sir Palamides and the pagan Cornish King Mark to overthrow Arthur and Christianity and take over the country, whilst pretending to be Arthur's friends and allies  - Palamides is a knight of the round table and Mark has faked his own baptism.John accuses Palamides' servant Bernard of murder before Arthur, who grants him three months' grace to prove the accusation or face execution himself. Another knight, Sir Ontzlake, takes pity on John and trains him in swordplay so that he can take on an alternative secret identity as the wandering Black Knight. The "Vikings" raid a newly founded monastery and take Lady Linet and its monks to Stonehenge for a pagan sacrifice, but the Black Knight arrives and saves her, closely followed by Arthur and his knights, who defeat the pagans and destroy Stonehenge.
Sir Palamides tricks the Lady Linet into his castle to try to get her to reveal the Black Knight's identity, but John is informed of this and saves her, still in disguise. Sir Ontzlake then sends him to King Mark's castle, where a pro-Arthur woodcarver shows him  a secret tunnel into the royal chambers. John arrives in time to overhear Mark and Palamides finalising their plot but Palamides beats him back to Camelot, tricking Arthur into thinking that the Black Knight is leading the Viking raids. John arrives dressed as the Black Knight and despite revealing his identity is briefly imprisoned until Lady Linet and Sir Ontzlake free him, with the latter standing bail for John to Arthur.
Who loses his memory after his wife is killed?

Passage: The Annunciation draws heavily on van der Weyden's 1430s Louvre Annunciation, his c. 1455  Saint Columba altarpiece, and the Clugny Annunciation (c. 1465–75), 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.
What is the name of the person who might have assisted with the underdrawing in Van der Weyden's workshop?

Passage: Noted residents in the Caversham area have included members of the Sidey family, several of whom were local or national politicians. Among these was Thomas Sidey, New Zealand Attorney General 1928–31. Sidey Park, close to the northern edge of the Caversham bypass, and Sidey Street in Corstorphine are both named in his honour.
Captain William Cargill, founder of the Otago settlement, lived just to the northeast of Caversham above The Glen; his house "Hillside" gave its name to Hillside Road, which was at one time called Cargill Road. The area around the site of Cargill's long-demolished house between The Glen and Kensington is still referred to as Hillside. Cargill's Corner, the major road junction at the South Dunedin end of Hillside Road, is also named in his honour.
Architect Edmund Anscombe was a Caversham resident. Anscombe was responsible for numerous important buildings in early 20th century New Zealand, many of which survive to the present day. Among them are the Sarjeant Art Gallery in Wanganui and the Former Post and Telegraph Building in Wellington. Noted local buildings with work by Anscombe include extensions to the University of Otago Clocktower complex in Dunedin North, the main building of Otago Girls' High School in central Dunedin, and the Allied Press building in Lower Stuart Street, Dunedin.
Another notable local resident was surveyor and architect John Turnbull Thomson. Thomson was Chief Surveyor of the Otago Province from 1856 to 1873, and Surveyor-General of New Zealand from 1876 to 1879. During his time as provincial Chief Surveyor, Thomson explored and mapped large sections of the interior of the southern South Island. Many of the place names in this region reflect Thomson's Northumbrian origins, with prosaic names in the form of a Northumbrian dialectic name for an animal. As a result, the area is still occasionally referred to as "Thomson's Barnyard" or "The Farmyard Patch".Among sportspeople with Caversham connections, Australian Test cricketer and 1931 Wisden Cricketer of the year Clarrie Grimmett is perhaps the best known. Grimmett, the first player to take 200 Test wickets, was born in the suburb on Christmas Day, 1891. Noted rugby union administrators "Old Vic" Cavanagh and "Young Vic" Cavanagh were also born in Caversham. Between them, the father and son were responsible for changes to the way the game of rugby union was played through their innovative coaching methods and tactics.
The cricketer, poet, songwriter and teacher Robert J. Pope (1865–1949) was also born in Caversham.

What is the full name of the person that worked on the buildings of Otago Girls' High School in central Dunedin?