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: On 21 January 1818, Friedrich married Caroline Bommer, the twenty-five-year-old daughter of a dyer from Dresden. The couple had three children, with their first, Emma, arriving in 1820.  Physiologist and painter Carl Gustav Carus notes in his biographical essays that marriage did not impact significantly on either Friedrich's life or personality, yet his canvasses from this period, including Chalk Cliffs on Rügen—painted after his honeymoon—display a new sense of levity, while his palette is brighter and less austere. Human figures appear with increasing frequency in the paintings of this period, which Siegel interprets as a reflection that "the importance of human life, particularly his family, now occupies his thoughts more and more, and his friends, his wife, and his townspeople appear as frequent subjects in his art."Around this time, he found support from two sources in Russia. In 1820, the Grand Duke Nikolai Pavlovich, at the behest of his wife Alexandra Feodorovna, visited Friedrich's studio and returned to Saint Petersburg with a number of his paintings, an exchange that began a patronage that continued for many years. Not long thereafter, the poet Vasily Zhukovsky, tutor to Alexander II, met Friedrich in 1821 and found in him a kindred spirit. For decades Zhukovsky helped Friedrich both by purchasing his work himself and by recommending his art to the royal family; his assistance toward the end of Friedrich's career proved invaluable to the ailing and impoverished artist. Zhukovsky remarked that his friend's paintings "please us by their precision, each of them awakening a memory in our mind."Friedrich was acquainted with Philipp Otto Runge, another leading German painter of the Romantic period. He was also a friend of Georg Friedrich Kersting, and painted him at work in his unadorned studio, and of the Norwegian painter Johan Christian Clausen Dahl (1788–1857). Dahl was close to Friedrich during the artist's final years, and he expressed dismay that to the art-buying public, Friedrich's pictures were only "curiosities". While the poet Zhukovsky appreciated Friedrich's psychological themes, Dahl praised the descriptive quality of Friedrich's landscapes, commenting that "artists and connoisseurs saw in Friedrich's art only a kind of mystic, because they themselves were only looking out for the mystic... They did not see Friedrich's faithful and conscientious study of nature in everything he represented".During this period Friedrich frequently sketched memorial monuments and sculptures for mausoleums, reflecting his obsession with death and the afterlife; he even created designs for some of the funerary art in Dresden's cemeteries. Some of these works were lost in the fire that destroyed Munich's Glass Palace (1931) and later in the 1945 bombing of Dresden.
What is the full name of the person whose assistance toward the end of Friedrich's career proved invaluable to the ailing and impoverished artist?

Passage: As Opeth's primary songwriter and lyricist, vocalist/guitarist Mikael Åkerfeldt heads the direction of Opeth's sound. He was influenced at a young age by the 1970s progressive rock bands King Crimson, Yes, Genesis, Camel, P.F.M., Hawkwind, and Gracious, and by heavy metal bands such as Iron Maiden, Slayer, Death, Black Sabbath, Deep Purple, Celtic Frost, King Diamond, Morbid Angel, Voivod, and, most importantly, Judas Priest. Åkerfeldt considers Judas Priest's Sad Wings of Destiny (1976) the best metal album of all time, and notes that there was a time when he listened only to Judas Priest. While warming up before Opeth concerts, Åkerfeldt frequently sings "Here Come the Tears" from Judas Priest's third album Sin After Sin (1977). Åkerfeldt later discovered progressive rock and folk music, both of which had a profound impact on the sound of the band.Opeth's distinct sound mixes death metal with progressive rock. Steve Huey of AllMusic refers to Opeth's "epic, progressive death metal style". Ryan Ogle of Blabbermouth described Opeth's sound as incorporating "the likes of folk, funk, blues, '70s rock, goth and a laundry list of other sonic oddities into their trademark progressive death style." In his review of Opeth's 2001 album Blackwater Park, AllMusic's Eduardo Rivadavia wrote, "Tracks start and finish in seemingly arbitrary fashion, usually traversing ample musical terrain, including acoustic guitar and solo piano passages, ambient soundscapes, stoner rock grooves, and Eastern-tinged melodies—any of which are subject to savage punctuations of death metal fury at any given moment." Åkerfeldt commented on the diversity of Opeth's music:
I don't see the point of playing in a band and going just one way when you can do everything. It would be impossible for us to play just death metal; that is our roots, but we are now a mishmash of everything, and not purists to any form of music. It's impossible for us to do that, and quite frankly I would think of it as boring to be in a band that plays just metal music. We're not afraid to experiment, or to be caught with our pants down, so to speak. That's what keeps us going.
More recently, Opeth have abandoned their death metal sound resulting in a mellower progressive rock sound. When talking about Heritage, guitarist Fredrik Åkesson stated:
In the beginning it took me a little while to get used to the new idea of the sound, not having any screaming vocals and stuff like that.  But I think the album was necessary for us to do. Maybe the band wouldn't have continued if we hadn't done Heritage.  I think the old Opeth fans understand this album. There's always going to be some haters, but you can't be loved by everyone. Opeth has always been about not repeating ourself. A lot of people don't think Heritage is metal but I think it's metal to go somewhere people don't expect. It doesn't mean we're not embracing the past sound of Opeth.
What is the last name of the person who was influenced at a young age by 1970s progressive rock bands?

Passage: Boxwood is a dense hardwood with fine grain, resistant to splitting and chipping—ideal for wood carving. In the 16th century, woodcut blocks used for woodblock printing were usually made of boxwood. Uses for boxwood were similar to those for ivory in medieval carvings, but boxwood was a far less expensive option than ivory. Designs were overseen by master craftsmen who must have had access to prints and woodcuts of contemporary works of art, and who were apparently influenced by diptych and triptych panel paintings.Boxwood grows slowly, so the trunk remains fairly narrow, a fact that limits the size of any carvings made from any single piece. The wood assumes an even, soft and tactile surface if polished or frequently handled, such as was the case for prayer nuts. The wood loses its tactility when painted, explaining why most of the miniatures are in monochrome. Polychromy reduced the legibility of the carvings, "quite apart from the difficulty of effectively coloring such tiny and complex scenes" as the art historian Frits Scholten has noted.The tools used in production were similar to those used in the production of larger altarpieces; they included saws, planes, card scrapers, chisels, augers, braces, and gimlets. Wood was cut into the required dimensions as blocks, after which the joints were carved out. Prayer beads were turned on a lathe. The woodcutters carved a single block of boxwood into a sphere, cut it in half, hollowed it out, and attached a fastening hinge and carrying loops. The carvings in the interiors were typically made separately from the smaller hemispheres and later fitted onto an outer shell. In some cases, these wooden shells were placed in silver housing.
Because of the diminutive scale of the pieces, magnifying glasses were used in their production. The very small wood pieces were difficult to brace (hold in place) during carving. They were likely positioned on a bench, between two posts, so that they could be turned around. Domed spaces, intended to evoke church architecture, were drilled or carved, and these were divided using compasses and a straightedge into pie-shaped segments. A surface plane was established onto which the reliefs were added. These were created from multiple separate wood sheets, individually produced before being joined in layers. Major figures, usually saints, were carved from single blocks of wood. Relief components were either glued into prefixed niches, or they were bound with pegs, which were sometimes functional and obviously visible or implanted into the relief form. Because of this layered structure, they are often fragile.

What were the designs for that were overseen by master craftsmen who were influenced by diptych and triptych panel paintings?