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: The Rosetta Stone is listed as "a stone of black granodiorite, bearing three inscriptions ... found at Rosetta" in a contemporary catalogue of the artefacts discovered by the French expedition and surrendered to British troops in 1801. At some period after its arrival in London, the inscriptions on the stone were coloured in white chalk to make them more legible, and the remaining surface was covered with a layer of carnauba wax designed to protect the Rosetta Stone from visitors' fingers. This gave a dark colour to the stone that led to its mistaken identification as black basalt. These additions were removed when the stone was cleaned in 1999, revealing the original dark grey tint of the rock, the sparkle of its crystalline structure, and a pink vein running across the top left corner. Comparisons with the Klemm collection of Egyptian rock samples showed a close resemblance to rock from a small granodiorite quarry at Gebel Tingar on the west bank of the Nile, west of Elephantine in the region of Aswan; the pink vein is typical of granodiorite from this region.The Rosetta Stone is 1,123 millimetres (3 ft 8 in) high at its highest point, 757 mm (2 ft 5.8 in) wide, and 284 mm (11 in) thick. It weighs approximately 760 kilograms (1,680 lb). It bears three inscriptions: the top register in Ancient Egyptian hieroglyphs, the second in the Egyptian Demotic script, and the third in Ancient Greek. The front surface is polished and the inscriptions lightly incised on it; the sides of the stone are smoothed, but the back is only roughly worked, presumably because this would have not been visible when it was erected.

Answer: How many kilograms does the Rosetta Stone weigh?


Question: Passage: The chief building material of the church is buff sandstone, which came from the Goodrich Quarry (also called the Greystone Quarry) in the Almaden area of San Jose, was delivered by train and rough-cut in the university Quad.  Gregg credits the high quality of the stonework to church and university builder John D. McGilvray.  The church is roofed with terracotta tiles of the Italian imbrex and tegula form. The nave, chancel, and transepts appear to project from the square central structure, roofed with tiles and a small skylight above its center.  Memorial Church originally had a central bell tower with an 80-foot tall, twelve-sided spire, but this was lost as a result of the 1906 earthquake.The church's facade is surmounted by a simple Celtic cross, a motif that appears several times throughout the building.  The cross was added after the 1906 earthquake; its central shaft was destroyed in the Loma Prieta earthquake and replaced.  There are three arched entrances below the exterior mosaic; the central one is slightly larger than the others.  The surrounding stonework is intricately carved with stylized flora, twisted-cable moldings, and bosses of sculpted cherubim, a motif which occurs in different media throughout the church. In the spandrels are mosaic depictions of the biblical concepts of love, faith, hope and charity intertwined in a vine representing the "tree of life".In the upper zone of the facade, surrounded by more elaborate stonework and "lacy carving", is a large central window, with groups of three smaller windows on each side.  The original central window was a quatrefoil-shaped rose window, but after the 1906 earthquake, it was replaced by a "classical round-head window that more grandly restates the smaller flanking, articulated openings" and that corresponded with the mission-style architecture of the Quad.  Beneath the windows are inlaid panels of colored marble.

Answer: What church's chief building material was buff sandstone?


Question: Passage: Eccentric painter Gulley Jimson is released from a one-month jail sentence for telephone harassment of his sponsor, Mr Hickson. Nosey Barbon, who wants to be Jimson's protégé, greets Jimson at HM Prison Wormwood Scrubs, but Jimson tries to discourage Nosey from pursuing painting for a living. Jimson goes to his houseboat, which his older lady friend Coker has been maintaining in his absence.
Jimson tries to borrow money from Hickson and Coker. Jimson and Coker later visit Hickson to secure payment for Jimson's artwork. Jimson tries to steal works back from Hickson's place but Coker stops him. Hickson calls the police, but Jimson and Coker escape.
Jimson responds to a note from A. W. Alabaster, secretary to Sir William and Lady , who are interested in acquiring Jimson's early artworks. Jimson and Coker try to secure one of those works from Sara Monday, Jimson's ex-wife, but she turns them down.
When Jimson visits the Beeders, he sees a blank wall in their residence and is inspired to paint "The Raising of Lazarus". He learns that the Beeders are leaving for six weeks, and takes advantage of their absence to execute the painting. An old artistic rival, Abel, intrudes on Jimson to bring in a large block of marble to fulfil a sculpture commission for British Rail. Jimson pawns the Beeders' valuables, and Abel and Jimson accidentally destroy part of the Beeders' floor when the marble is dropped. After Jimson has completed the painting, the Beeders return. Shocked by the painting, they fall through the hole in the floor.

Answer:
What is the name of Jimson's friend who helps him try to get an older work back from his ex-wife?