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.

[EX Q]: 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.
[EX A]: What church's chief building material was buff sandstone?

[EX Q]: Passage: With MacCallum's year of financial support over, Thomson's financial future became uncertain. He briefly looked into applying for a position as a park ranger, but balked after seeing that it could take months for the application to go through. Instead, he considered working in an engraving shop over the winter. He made little effort to sell his paintings, preferring to give them away, though he brought in some money from the paintings he sold. In mid-November, he donated In Algonquin Park to an exhibition organized to raise money for the Canadian Patriotic Fund. It was sold to Marion Long for $50 (equivalent to CAD$1,100 in 2018).In the spring of 1915, Thomson returned to Algonquin Park earlier than he had in any previous year and had already painted twenty-eight sketches by April 22. From April through July, he spent much of his time fishing, assisting groups on several different lakes, and sketching when he had time. In July, he was invited to send paintings to the Nova Scotia Provincial Exhibition in September. Because he was in Algonquin Park, his friends selected three works to sendtwo unidentified works from 1914 and the sketch Canadian Wildflowers. From the end of September to mid-October, he spent his time at Mowat, a village on the north end of Canoe Lake. By November, he was at Round Lake with Tom Wattie and Dr. Robert McComb. In late November, he returned to Toronto and moved into a shack behind the Studio Building that Harris and MacCallum fixed up for him, renting it for $1 a month.In 1915, MacCallum commissioned MacDonald, Lismer and Thomson to paint decorative panels for his cottage on Go-Home Bay. In October of that year, MacDonald went up to take dimensions. Thomson produced four panels which were probably meant to go over the windows. In April 1916, when MacDonald and Lismer went to install them, they found that MacDonald's measurements were incorrect and the panels did not fit.
[EX A]: What is the name of the person who made little effort in selling his paintings?

[EX Q]: Passage: The music video for "Deja Vu" was filmed by British director Sophie Muller in New Orleans, Louisiana on June 21, 2006, with parts of the video shot at the Maple Leaf Bar and the Oak Alley Plantation in Carrollton, Louisiana and Vacherie, Louisiana respectively. The footage features couture-inspired outfits, vigorous footwork and sexually-themed routines. The video simultaneously premiered on July 12, 2006 on MTV's show Total Request Live (TRL), and Overdrive, MTV's broadband video channel. It reached the top spot on the TRL, Yahoo!, and MTV countdowns. The "Deja Vu" video topped the UK TV airplay chart in late July 2006.
The video begins with showing Beyonce against a green wall and Jay-Z sitting on a chair inside a dark room. Beyonce and Jay-Z then start to simultaneously play imaginary instruments, mimicking the song's tune. Scenes of Beyonce are then shown in several different rooms wearing different outfits. As the chorus begins, she is shown running around and dancing out in a large sugarcane field. At the end of the chorus, she dances in a red dress in front of a pond and in a large red dress out in front of a mansion. When Jay-Z's verse begins, the two are shown alone inside a room, Beyonce is now barefoot and bare-legged, she dances seductively around Jay-Z, and leads to the controversial oral sex scene. Beyonce is then shown wearing a green skirt and bedazzled bra while dancing around in sand. As the song progresses, she is shown dancing alone in a dark forest wearing a sparkling black dress as fireflies circle around her head. The song ends with Beyonce leaning back in a pose as fireflies race away.
[EX A]:
What is the name of the person who is shown dancing alone in a dark forest wearing a sparkling black dress?